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Finding the Fourth Proportional to 323,062.97, 484,594.34 and 86,399.50

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Solution

The fourth proportional to 323,062.97, 484,594.34 and 86,399.50 is: 129,599.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,062.97 : 484,594.34 = 86,399.50 : x
  2. Step 2: Convert to fraction form
    323,062.97/484,594.34 = 86,399.50/x
  3. Step 3: Cross multiply
    323,062.97x = 484,594.34 × 86,399.50
  4. Step 4: Simplify right side
    323,062.97x = 41,868,707,035.35
  5. Step 5: Solve for x
    x = 41,868,707,035.35/323,062.97
  6. Step 6: Final answer
    x = 129,599.22

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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.