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Finding the Fourth Proportional to 864,255.92, 1,192,671.42 and 482,259.92

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Solution

The fourth proportional to 864,255.92, 1,192,671.42 and 482,259.92 is: 665,517.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,255.92 : 1,192,671.42 = 482,259.92 : x
  2. Step 2: Convert to fraction form
    864,255.92/1,192,671.42 = 482,259.92/x
  3. Step 3: Cross multiply
    864,255.92x = 1,192,671.42 × 482,259.92
  4. Step 4: Simplify right side
    864,255.92x = 575,177,623,595.49
  5. Step 5: Solve for x
    x = 575,177,623,595.49/864,255.92
  6. Step 6: Final answer
    x = 665,517.71

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.