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Finding the Fourth Proportional to 610,913.20, 915,592.20 and 544,039.60

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Solution

The fourth proportional to 610,913.20, 915,592.20 and 544,039.60 is: 815,366.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,913.20 : 915,592.20 = 544,039.60 : x
  2. Step 2: Convert to fraction form
    610,913.20/915,592.20 = 544,039.60/x
  3. Step 3: Cross multiply
    610,913.20x = 915,592.20 × 544,039.60
  4. Step 4: Simplify right side
    610,913.20x = 498,118,414,251.12
  5. Step 5: Solve for x
    x = 498,118,414,251.12/610,913.20
  6. Step 6: Final answer
    x = 815,366.92

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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.