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Finding the Fourth Proportional to 527,046.79, 727,324.41 and 285,329.20

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Solution

The fourth proportional to 527,046.79, 727,324.41 and 285,329.20 is: 393,754.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,046.79 : 727,324.41 = 285,329.20 : x
  2. Step 2: Convert to fraction form
    527,046.79/727,324.41 = 285,329.20/x
  3. Step 3: Cross multiply
    527,046.79x = 727,324.41 × 285,329.20
  4. Step 4: Simplify right side
    527,046.79x = 207,526,892,045.77
  5. Step 5: Solve for x
    x = 207,526,892,045.77/527,046.79
  6. Step 6: Final answer
    x = 393,754.21

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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.