Home / 437,463.20-656,194.80-279,221.60

Finding the Fourth Proportional to 437,463.20, 656,194.80 and 279,221.60

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Solution

The fourth proportional to 437,463.20, 656,194.80 and 279,221.60 is: 418,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,463.20 : 656,194.80 = 279,221.60 : x
  2. Step 2: Convert to fraction form
    437,463.20/656,194.80 = 279,221.60/x
  3. Step 3: Cross multiply
    437,463.20x = 656,194.80 × 279,221.60
  4. Step 4: Simplify right side
    437,463.20x = 183,223,761,967.68
  5. Step 5: Solve for x
    x = 183,223,761,967.68/437,463.20
  6. Step 6: Final answer
    x = 418,832.40

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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.