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Finding the Fourth Proportional to 488,019.40, 732,149.10 and 168,176.20

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Solution

The fourth proportional to 488,019.40, 732,149.10 and 168,176.20 is: 252,305.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,019.40 : 732,149.10 = 168,176.20 : x
  2. Step 2: Convert to fraction form
    488,019.40/732,149.10 = 168,176.20/x
  3. Step 3: Cross multiply
    488,019.40x = 732,149.10 × 168,176.20
  4. Step 4: Simplify right side
    488,019.40x = 123,130,053,471.42
  5. Step 5: Solve for x
    x = 123,130,053,471.42/488,019.40
  6. Step 6: Final answer
    x = 252,305.65

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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.