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Finding the Fourth Proportional to 488,534.40, 732,801.60 and 168,685.65

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Solution

The fourth proportional to 488,534.40, 732,801.60 and 168,685.65 is: 253,028.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,534.40 : 732,801.60 = 168,685.65 : x
  2. Step 2: Convert to fraction form
    488,534.40/732,801.60 = 168,685.65/x
  3. Step 3: Cross multiply
    488,534.40x = 732,801.60 × 168,685.65
  4. Step 4: Simplify right side
    488,534.40x = 123,613,114,217.04
  5. Step 5: Solve for x
    x = 123,613,114,217.04/488,534.40
  6. Step 6: Final answer
    x = 253,028.48

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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.