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Finding the Fourth Proportional to 1,377,951.52, 1,901,343 and 766,086.88

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Solution

The fourth proportional to 1,377,951.52, 1,901,343 and 766,086.88 is: 1,057,071.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,951.52 : 1,901,343 = 766,086.88 : x
  2. Step 2: Convert to fraction form
    1,377,951.52/1,901,343 = 766,086.88/x
  3. Step 3: Cross multiply
    1,377,951.52x = 1,901,343 × 766,086.88
  4. Step 4: Simplify right side
    1,377,951.52x = 1,456,593,926,679.84
  5. Step 5: Solve for x
    x = 1,456,593,926,679.84/1,377,951.52
  6. Step 6: Final answer
    x = 1,057,071.97

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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.