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Finding the Fourth Proportional to 653,735.28, 981,432.36 and 555,861.36

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Solution

The fourth proportional to 653,735.28, 981,432.36 and 555,861.36 is: 834,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,735.28 : 981,432.36 = 555,861.36 : x
  2. Step 2: Convert to fraction form
    653,735.28/981,432.36 = 555,861.36/x
  3. Step 3: Cross multiply
    653,735.28x = 981,432.36 × 555,861.36
  4. Step 4: Simplify right side
    653,735.28x = 545,540,326,377.61
  5. Step 5: Solve for x
    x = 545,540,326,377.61/653,735.28
  6. Step 6: Final answer
    x = 834,497.30

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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.