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Finding the Fourth Proportional to 584,455.40, 876,683.10 and 540,715.40

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Solution

The fourth proportional to 584,455.40, 876,683.10 and 540,715.40 is: 811,073.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,455.40 : 876,683.10 = 540,715.40 : x
  2. Step 2: Convert to fraction form
    584,455.40/876,683.10 = 540,715.40/x
  3. Step 3: Cross multiply
    584,455.40x = 876,683.10 × 540,715.40
  4. Step 4: Simplify right side
    584,455.40x = 474,036,053,089.74
  5. Step 5: Solve for x
    x = 474,036,053,089.74/584,455.40
  6. Step 6: Final answer
    x = 811,073.10

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Half scale
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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.