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Finding the Fourth Proportional to 323,062.59, 484,593.77 and 86,399.12

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Solution

The fourth proportional to 323,062.59, 484,593.77 and 86,399.12 is: 129,598.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,062.59 : 484,593.77 = 86,399.12 : x
  2. Step 2: Convert to fraction form
    323,062.59/484,593.77 = 86,399.12/x
  3. Step 3: Cross multiply
    323,062.59x = 484,593.77 × 86,399.12
  4. Step 4: Simplify right side
    323,062.59x = 41,868,476,712.96
  5. Step 5: Solve for x
    x = 41,868,476,712.96/323,062.59
  6. Step 6: Final answer
    x = 129,598.65

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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.