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Finding the Fourth Proportional to 425,885.45, 587,717.98 and 234,900.20

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Solution

The fourth proportional to 425,885.45, 587,717.98 and 234,900.20 is: 324,160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,885.45 : 587,717.98 = 234,900.20 : x
  2. Step 2: Convert to fraction form
    425,885.45/587,717.98 = 234,900.20/x
  3. Step 3: Cross multiply
    425,885.45x = 587,717.98 × 234,900.20
  4. Step 4: Simplify right side
    425,885.45x = 138,055,071,927.64
  5. Step 5: Solve for x
    x = 138,055,071,927.64/425,885.45
  6. Step 6: Final answer
    x = 324,160.11

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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.