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Finding the Fourth Proportional to 555,772.53, 767,140.49 and 354,568.37

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Solution

The fourth proportional to 555,772.53, 767,140.49 and 354,568.37 is: 489,415.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,772.53 : 767,140.49 = 354,568.37 : x
  2. Step 2: Convert to fraction form
    555,772.53/767,140.49 = 354,568.37/x
  3. Step 3: Cross multiply
    555,772.53x = 767,140.49 × 354,568.37
  4. Step 4: Simplify right side
    555,772.53x = 272,003,753,100.30
  5. Step 5: Solve for x
    x = 272,003,753,100.30/555,772.53
  6. Step 6: Final answer
    x = 489,415.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.