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Finding the Fourth Proportional to 488,442.30, 732,793.05 and 172,866.30

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Solution

The fourth proportional to 488,442.30, 732,793.05 and 172,866.30 is: 259,345.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,442.30 : 732,793.05 = 172,866.30 : x
  2. Step 2: Convert to fraction form
    488,442.30/732,793.05 = 172,866.30/x
  3. Step 3: Cross multiply
    488,442.30x = 732,793.05 × 172,866.30
  4. Step 4: Simplify right side
    488,442.30x = 126,675,223,219.22
  5. Step 5: Solve for x
    x = 126,675,223,219.22/488,442.30
  6. Step 6: Final answer
    x = 259,345.32

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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.