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Finding the Fourth Proportional to 488,085.40, 732,248.10 and 168,242.20

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Solution

The fourth proportional to 488,085.40, 732,248.10 and 168,242.20 is: 252,404.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,085.40 : 732,248.10 = 168,242.20 : x
  2. Step 2: Convert to fraction form
    488,085.40/732,248.10 = 168,242.20/x
  3. Step 3: Cross multiply
    488,085.40x = 732,248.10 × 168,242.20
  4. Step 4: Simplify right side
    488,085.40x = 123,195,031,289.82
  5. Step 5: Solve for x
    x = 123,195,031,289.82/488,085.40
  6. Step 6: Final answer
    x = 252,404.66

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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.