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Finding the Fourth Proportional to 502,548.60, 753,859.82 and 187,005.48

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Solution

The fourth proportional to 502,548.60, 753,859.82 and 187,005.48 is: 280,521.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,548.60 : 753,859.82 = 187,005.48 : x
  2. Step 2: Convert to fraction form
    502,548.60/753,859.82 = 187,005.48/x
  3. Step 3: Cross multiply
    502,548.60x = 753,859.82 × 187,005.48
  4. Step 4: Simplify right side
    502,548.60x = 140,975,917,491.81
  5. Step 5: Solve for x
    x = 140,975,917,491.81/502,548.60
  6. Step 6: Final answer
    x = 280,521.96

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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.