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Finding the Fourth Proportional to 527,073.66, 727,362.12 and 285,356.40

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Solution

The fourth proportional to 527,073.66, 727,362.12 and 285,356.40 is: 393,792.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,073.66 : 727,362.12 = 285,356.40 : x
  2. Step 2: Convert to fraction form
    527,073.66/727,362.12 = 285,356.40/x
  3. Step 3: Cross multiply
    527,073.66x = 727,362.12 × 285,356.40
  4. Step 4: Simplify right side
    527,073.66x = 207,557,436,059.57
  5. Step 5: Solve for x
    x = 207,557,436,059.57/527,073.66
  6. Step 6: Final answer
    x = 393,792.09

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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.