Home / 345,839.31-518,057.78-195,764.13

Finding the Fourth Proportional to 345,839.31, 518,057.78 and 195,764.13

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Solution

The fourth proportional to 345,839.31, 518,057.78 and 195,764.13 is: 293,249.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,839.31 : 518,057.78 = 195,764.13 : x
  2. Step 2: Convert to fraction form
    345,839.31/518,057.78 = 195,764.13/x
  3. Step 3: Cross multiply
    345,839.31x = 518,057.78 × 195,764.13
  4. Step 4: Simplify right side
    345,839.31x = 101,417,129,612.61
  5. Step 5: Solve for x
    x = 101,417,129,612.61/345,839.31
  6. Step 6: Final answer
    x = 293,249.28

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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.