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Finding the Fourth Proportional to 408,858.40, 564,157.20 and 227,565.62

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Solution

The fourth proportional to 408,858.40, 564,157.20 and 227,565.62 is: 314,003.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,858.40 : 564,157.20 = 227,565.62 : x
  2. Step 2: Convert to fraction form
    408,858.40/564,157.20 = 227,565.62/x
  3. Step 3: Cross multiply
    408,858.40x = 564,157.20 × 227,565.62
  4. Step 4: Simplify right side
    408,858.40x = 128,382,782,995.46
  5. Step 5: Solve for x
    x = 128,382,782,995.46/408,858.40
  6. Step 6: Final answer
    x = 314,003.05

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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.