Home / 540,735,779.40-811,103,669.10-358,982,957.40

Finding the Fourth Proportional to 540,735,779.40, 811,103,669.10 and 358,982,957.40

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Solution

The fourth proportional to 540,735,779.40, 811,103,669.10 and 358,982,957.40 is: 538,474,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,735,779.40 : 811,103,669.10 = 358,982,957.40 : x
  2. Step 2: Convert to fraction form
    540,735,779.40/811,103,669.10 = 358,982,957.40/x
  3. Step 3: Cross multiply
    540,735,779.40x = 811,103,669.10 × 358,982,957.40
  4. Step 4: Simplify right side
    540,735,779.40x = 291,172,393,891,508,992
  5. Step 5: Solve for x
    x = 291,172,393,891,508,992/540,735,779.40
  6. Step 6: Final answer
    x = 538,474,436.10

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Double scale
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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.