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Finding the Fourth Proportional to 527,139.66, 727,449.66 and 285,417.24

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Solution

The fourth proportional to 527,139.66, 727,449.66 and 285,417.24 is: 393,874.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,139.66 : 727,449.66 = 285,417.24 : x
  2. Step 2: Convert to fraction form
    527,139.66/727,449.66 = 285,417.24/x
  3. Step 3: Cross multiply
    527,139.66x = 727,449.66 × 285,417.24
  4. Step 4: Simplify right side
    527,139.66x = 207,626,674,196.14
  5. Step 5: Solve for x
    x = 207,626,674,196.14/527,139.66
  6. Step 6: Final answer
    x = 393,874.13

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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.