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Finding the Fourth Proportional to 502,752.03, 693,780.08 and 276,395.79

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Solution

The fourth proportional to 502,752.03, 693,780.08 and 276,395.79 is: 381,416.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,752.03 : 693,780.08 = 276,395.79 : x
  2. Step 2: Convert to fraction form
    502,752.03/693,780.08 = 276,395.79/x
  3. Step 3: Cross multiply
    502,752.03x = 693,780.08 × 276,395.79
  4. Step 4: Simplify right side
    502,752.03x = 191,757,891,915.88
  5. Step 5: Solve for x
    x = 191,757,891,915.88/502,752.03
  6. Step 6: Final answer
    x = 381,416.44

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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.