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Finding the Fourth Proportional to 425,839.68, 587,651.76 and 234,870.84

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Solution

The fourth proportional to 425,839.68, 587,651.76 and 234,870.84 is: 324,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,839.68 : 587,651.76 = 234,870.84 : x
  2. Step 2: Convert to fraction form
    425,839.68/587,651.76 = 234,870.84/x
  3. Step 3: Cross multiply
    425,839.68x = 587,651.76 × 234,870.84
  4. Step 4: Simplify right side
    425,839.68x = 138,022,262,498.68
  5. Step 5: Solve for x
    x = 138,022,262,498.68/425,839.68
  6. Step 6: Final answer
    x = 324,117.90

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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.