Home / 516,231.53-712,490.75-386,062.20

Finding the Fourth Proportional to 516,231.53, 712,490.75 and 386,062.20

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Solution

The fourth proportional to 516,231.53, 712,490.75 and 386,062.20 is: 532,834.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,231.53 : 712,490.75 = 386,062.20 : x
  2. Step 2: Convert to fraction form
    516,231.53/712,490.75 = 386,062.20/x
  3. Step 3: Cross multiply
    516,231.53x = 712,490.75 × 386,062.20
  4. Step 4: Simplify right side
    516,231.53x = 275,065,745,942.07
  5. Step 5: Solve for x
    x = 275,065,745,942.07/516,231.53
  6. Step 6: Final answer
    x = 532,834.07

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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.