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Finding the Fourth Proportional to 474,520.92, 654,593.62 and 321,506.76

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Solution

The fourth proportional to 474,520.92, 654,593.62 and 321,506.76 is: 443,513.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,520.92 : 654,593.62 = 321,506.76 : x
  2. Step 2: Convert to fraction form
    474,520.92/654,593.62 = 321,506.76/x
  3. Step 3: Cross multiply
    474,520.92x = 654,593.62 × 321,506.76
  4. Step 4: Simplify right side
    474,520.92x = 210,456,273,882.87
  5. Step 5: Solve for x
    x = 210,456,273,882.87/474,520.92
  6. Step 6: Final answer
    x = 443,513.16

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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.