Home / 812,057.60-1,218,086.40-251,148.80

Finding the Fourth Proportional to 812,057.60, 1,218,086.40 and 251,148.80

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Solution

The fourth proportional to 812,057.60, 1,218,086.40 and 251,148.80 is: 376,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,057.60 : 1,218,086.40 = 251,148.80 : x
  2. Step 2: Convert to fraction form
    812,057.60/1,218,086.40 = 251,148.80/x
  3. Step 3: Cross multiply
    812,057.60x = 1,218,086.40 × 251,148.80
  4. Step 4: Simplify right side
    812,057.60x = 305,920,937,656.32
  5. Step 5: Solve for x
    x = 305,920,937,656.32/812,057.60
  6. Step 6: Final answer
    x = 376,723.20

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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.