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Finding the Fourth Proportional to 530,468.01, 732,055.19 and 288,757.53

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Solution

The fourth proportional to 530,468.01, 732,055.19 and 288,757.53 is: 398,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,468.01 : 732,055.19 = 288,757.53 : x
  2. Step 2: Convert to fraction form
    530,468.01/732,055.19 = 288,757.53/x
  3. Step 3: Cross multiply
    530,468.01x = 732,055.19 × 288,757.53
  4. Step 4: Simplify right side
    530,468.01x = 211,386,447,044.29
  5. Step 5: Solve for x
    x = 211,386,447,044.29/530,468.01
  6. Step 6: Final answer
    x = 398,490.47

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.