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Finding the Fourth Proportional to 425,754.76, 587,528.10 and 234,776.20

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Solution

The fourth proportional to 425,754.76, 587,528.10 and 234,776.20 is: 323,983.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,754.76 : 587,528.10 = 234,776.20 : x
  2. Step 2: Convert to fraction form
    425,754.76/587,528.10 = 234,776.20/x
  3. Step 3: Cross multiply
    425,754.76x = 587,528.10 × 234,776.20
  4. Step 4: Simplify right side
    425,754.76x = 137,937,614,711.22
  5. Step 5: Solve for x
    x = 137,937,614,711.22/425,754.76
  6. Step 6: Final answer
    x = 323,983.73

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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.