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Finding the Fourth Proportional to 488,121.10, 731,404.05 and 362,149.90

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Solution

The fourth proportional to 488,121.10, 731,404.05 and 362,149.90 is: 542,647.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,121.10 : 731,404.05 = 362,149.90 : x
  2. Step 2: Convert to fraction form
    488,121.10/731,404.05 = 362,149.90/x
  3. Step 3: Cross multiply
    488,121.10x = 731,404.05 × 362,149.90
  4. Step 4: Simplify right side
    488,121.10x = 264,877,903,567.10
  5. Step 5: Solve for x
    x = 264,877,903,567.10/488,121.10
  6. Step 6: Final answer
    x = 542,647.93

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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.