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Finding the Fourth Proportional to 488,346.90, 732,301.65 and 188,727.90

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Solution

The fourth proportional to 488,346.90, 732,301.65 and 188,727.90 is: 283,007.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,346.90 : 732,301.65 = 188,727.90 : x
  2. Step 2: Convert to fraction form
    488,346.90/732,301.65 = 188,727.90/x
  3. Step 3: Cross multiply
    488,346.90x = 732,301.65 × 188,727.90
  4. Step 4: Simplify right side
    488,346.90x = 138,205,752,571.04
  5. Step 5: Solve for x
    x = 138,205,752,571.04/488,346.90
  6. Step 6: Final answer
    x = 283,007.33

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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.