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Finding the Fourth Proportional to 488,691.68, 674,360.50 and 270,898.26

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Solution

The fourth proportional to 488,691.68, 674,360.50 and 270,898.26 is: 373,820.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,691.68 : 674,360.50 = 270,898.26 : x
  2. Step 2: Convert to fraction form
    488,691.68/674,360.50 = 270,898.26/x
  3. Step 3: Cross multiply
    488,691.68x = 674,360.50 × 270,898.26
  4. Step 4: Simplify right side
    488,691.68x = 182,683,086,062.73
  5. Step 5: Solve for x
    x = 182,683,086,062.73/488,691.68
  6. Step 6: Final answer
    x = 373,820.74

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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.