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Finding the Fourth Proportional to 557,687.92, 834,342.08 and 430,366.24

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Solution

The fourth proportional to 557,687.92, 834,342.08 and 430,366.24 is: 643,859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,687.92 : 834,342.08 = 430,366.24 : x
  2. Step 2: Convert to fraction form
    557,687.92/834,342.08 = 430,366.24/x
  3. Step 3: Cross multiply
    557,687.92x = 834,342.08 × 430,366.24
  4. Step 4: Simplify right side
    557,687.92x = 359,072,663,843.38
  5. Step 5: Solve for x
    x = 359,072,663,843.38/557,687.92
  6. Step 6: Final answer
    x = 643,859.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.