Home / 540,735,794.40-811,103,691.60-358,982,972.40

Finding the Fourth Proportional to 540,735,794.40, 811,103,691.60 and 358,982,972.40

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Solution

The fourth proportional to 540,735,794.40, 811,103,691.60 and 358,982,972.40 is: 538,474,458.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,735,794.40 : 811,103,691.60 = 358,982,972.40 : x
  2. Step 2: Convert to fraction form
    540,735,794.40/811,103,691.60 = 358,982,972.40/x
  3. Step 3: Cross multiply
    540,735,794.40x = 811,103,691.60 × 358,982,972.40
  4. Step 4: Simplify right side
    540,735,794.40x = 291,172,414,135,180,928
  5. Step 5: Solve for x
    x = 291,172,414,135,180,928/540,735,794.40
  6. Step 6: Final answer
    x = 538,474,458.60

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Half scale
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Double scale
Find fourth proportional to 540,735,795.40, 811,103,693.10 and 358,982,973.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.