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Finding the Fourth Proportional to 610,937.20, 915,628.20 and 544,063.60

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Solution

The fourth proportional to 610,937.20, 915,628.20 and 544,063.60 is: 815,402.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,937.20 : 915,628.20 = 544,063.60 : x
  2. Step 2: Convert to fraction form
    610,937.20/915,628.20 = 544,063.60/x
  3. Step 3: Cross multiply
    610,937.20x = 915,628.20 × 544,063.60
  4. Step 4: Simplify right side
    610,937.20x = 498,159,974,753.52
  5. Step 5: Solve for x
    x = 498,159,974,753.52/610,937.20
  6. Step 6: Final answer
    x = 815,402.92

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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.