Home / 688,764.78-950,753.25-517,178.43

Finding the Fourth Proportional to 688,764.78, 950,753.25 and 517,178.43

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Solution

The fourth proportional to 688,764.78, 950,753.25 and 517,178.43 is: 713,899.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,764.78 : 950,753.25 = 517,178.43 : x
  2. Step 2: Convert to fraction form
    688,764.78/950,753.25 = 517,178.43/x
  3. Step 3: Cross multiply
    688,764.78x = 950,753.25 × 517,178.43
  4. Step 4: Simplify right side
    688,764.78x = 491,709,073,152.40
  5. Step 5: Solve for x
    x = 491,709,073,152.40/688,764.78
  6. Step 6: Final answer
    x = 713,899.85

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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.