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Finding the Fourth Proportional to 521,414.76, 719,552.36 and 282,950.76

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Solution

The fourth proportional to 521,414.76, 719,552.36 and 282,950.76 is: 390,472.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,414.76 : 719,552.36 = 282,950.76 : x
  2. Step 2: Convert to fraction form
    521,414.76/719,552.36 = 282,950.76/x
  3. Step 3: Cross multiply
    521,414.76x = 719,552.36 × 282,950.76
  4. Step 4: Simplify right side
    521,414.76x = 203,597,887,121.79
  5. Step 5: Solve for x
    x = 203,597,887,121.79/521,414.76
  6. Step 6: Final answer
    x = 390,472.04

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.