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Finding the Fourth Proportional to 609,761.60, 913,644.58 and 369,146.19

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Solution

The fourth proportional to 609,761.60, 913,644.58 and 369,146.19 is: 553,115.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,761.60 : 913,644.58 = 369,146.19 : x
  2. Step 2: Convert to fraction form
    609,761.60/913,644.58 = 369,146.19/x
  3. Step 3: Cross multiply
    609,761.60x = 913,644.58 × 369,146.19
  4. Step 4: Simplify right side
    609,761.60x = 337,268,415,721.15
  5. Step 5: Solve for x
    x = 337,268,415,721.15/609,761.60
  6. Step 6: Final answer
    x = 553,115.21

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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.