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Finding the Fourth Proportional to 498,188.88, 747,681.84 and 261,671.04

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Solution

The fourth proportional to 498,188.88, 747,681.84 and 261,671.04 is: 392,715.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,188.88 : 747,681.84 = 261,671.04 : x
  2. Step 2: Convert to fraction form
    498,188.88/747,681.84 = 261,671.04/x
  3. Step 3: Cross multiply
    498,188.88x = 747,681.84 × 261,671.04
  4. Step 4: Simplify right side
    498,188.88x = 195,646,684,661.91
  5. Step 5: Solve for x
    x = 195,646,684,661.91/498,188.88
  6. Step 6: Final answer
    x = 392,715.88

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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.