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Finding the Fourth Proportional to 488,542.60, 732,813.90 and 172,894.60

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Solution

The fourth proportional to 488,542.60, 732,813.90 and 172,894.60 is: 259,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,542.60 : 732,813.90 = 172,894.60 : x
  2. Step 2: Convert to fraction form
    488,542.60/732,813.90 = 172,894.60/x
  3. Step 3: Cross multiply
    488,542.60x = 732,813.90 × 172,894.60
  4. Step 4: Simplify right side
    488,542.60x = 126,699,566,114.94
  5. Step 5: Solve for x
    x = 126,699,566,114.94/488,542.60
  6. Step 6: Final answer
    x = 259,341.90

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Similar ratio
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1.5x scale

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.