Home / 416,478.20-574,641.06-253,131.86

Finding the Fourth Proportional to 416,478.20, 574,641.06 and 253,131.86

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Solution

The fourth proportional to 416,478.20, 574,641.06 and 253,131.86 is: 349,261.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,478.20 : 574,641.06 = 253,131.86 : x
  2. Step 2: Convert to fraction form
    416,478.20/574,641.06 = 253,131.86/x
  3. Step 3: Cross multiply
    416,478.20x = 574,641.06 × 253,131.86
  4. Step 4: Simplify right side
    416,478.20x = 145,459,960,350.17
  5. Step 5: Solve for x
    x = 145,459,960,350.17/416,478.20
  6. Step 6: Final answer
    x = 349,261.88

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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.