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Finding the Fourth Proportional to 262,641.71, 393,331.26 and 149,980.83

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Solution

The fourth proportional to 262,641.71, 393,331.26 and 149,980.83 is: 224,610.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,641.71 : 393,331.26 = 149,980.83 : x
  2. Step 2: Convert to fraction form
    262,641.71/393,331.26 = 149,980.83/x
  3. Step 3: Cross multiply
    262,641.71x = 393,331.26 × 149,980.83
  4. Step 4: Simplify right side
    262,641.71x = 58,992,148,839.75
  5. Step 5: Solve for x
    x = 58,992,148,839.75/262,641.71
  6. Step 6: Final answer
    x = 224,610.74

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.