Home / 406,785.28-561,336.96-227,902.72

Finding the Fourth Proportional to 406,785.28, 561,336.96 and 227,902.72

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Solution

The fourth proportional to 406,785.28, 561,336.96 and 227,902.72 is: 314,490.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,785.28 : 561,336.96 = 227,902.72 : x
  2. Step 2: Convert to fraction form
    406,785.28/561,336.96 = 227,902.72/x
  3. Step 3: Cross multiply
    406,785.28x = 561,336.96 × 227,902.72
  4. Step 4: Simplify right side
    406,785.28x = 127,930,220,020.53
  5. Step 5: Solve for x
    x = 127,930,220,020.53/406,785.28
  6. Step 6: Final answer
    x = 314,490.78

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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.