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Finding the Fourth Proportional to 418,924.76, 578,099.15 and 237,632.80

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Solution

The fourth proportional to 418,924.76, 578,099.15 and 237,632.80 is: 327,923.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,924.76 : 578,099.15 = 237,632.80 : x
  2. Step 2: Convert to fraction form
    418,924.76/578,099.15 = 237,632.80/x
  3. Step 3: Cross multiply
    418,924.76x = 578,099.15 × 237,632.80
  4. Step 4: Simplify right side
    418,924.76x = 137,375,319,692.12
  5. Step 5: Solve for x
    x = 137,375,319,692.12/418,924.76
  6. Step 6: Final answer
    x = 327,923.61

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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.