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Finding the Fourth Proportional to 488,339.88, 732,781.98 and 263,695.56

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Solution

The fourth proportional to 488,339.88, 732,781.98 and 263,695.56 is: 395,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,339.88 : 732,781.98 = 263,695.56 : x
  2. Step 2: Convert to fraction form
    488,339.88/732,781.98 = 263,695.56/x
  3. Step 3: Cross multiply
    488,339.88x = 732,781.98 × 263,695.56
  4. Step 4: Simplify right side
    488,339.88x = 193,231,354,574.01
  5. Step 5: Solve for x
    x = 193,231,354,574.01/488,339.88
  6. Step 6: Final answer
    x = 395,690.30

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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.