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Finding the Fourth Proportional to 418,632.57, 577,761.66 and 234,921.74

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Solution

The fourth proportional to 418,632.57, 577,761.66 and 234,921.74 is: 324,219.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,632.57 : 577,761.66 = 234,921.74 : x
  2. Step 2: Convert to fraction form
    418,632.57/577,761.66 = 234,921.74/x
  3. Step 3: Cross multiply
    418,632.57x = 577,761.66 × 234,921.74
  4. Step 4: Simplify right side
    418,632.57x = 135,728,771,583.68
  5. Step 5: Solve for x
    x = 135,728,771,583.68/418,632.57
  6. Step 6: Final answer
    x = 324,219.33

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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.