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Finding the Fourth Proportional to 502,348.98, 693,238.85 and 272,904.45

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Solution

The fourth proportional to 502,348.98, 693,238.85 and 272,904.45 is: 376,606.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,348.98 : 693,238.85 = 272,904.45 : x
  2. Step 2: Convert to fraction form
    502,348.98/693,238.85 = 272,904.45/x
  3. Step 3: Cross multiply
    502,348.98x = 693,238.85 × 272,904.45
  4. Step 4: Simplify right side
    502,348.98x = 189,187,965,713.36
  5. Step 5: Solve for x
    x = 189,187,965,713.36/502,348.98
  6. Step 6: Final answer
    x = 376,606.65

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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.