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Finding the Fourth Proportional to 1,781,805, 2,671,437.78 and 834,659.04

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Solution

The fourth proportional to 1,781,805, 2,671,437.78 and 834,659.04 is: 1,251,393.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,805 : 2,671,437.78 = 834,659.04 : x
  2. Step 2: Convert to fraction form
    1,781,805/2,671,437.78 = 834,659.04/x
  3. Step 3: Cross multiply
    1,781,805x = 2,671,437.78 × 834,659.04
  4. Step 4: Simplify right side
    1,781,805x = 2,229,739,692,874.53
  5. Step 5: Solve for x
    x = 2,229,739,692,874.53/1,781,805
  6. Step 6: Final answer
    x = 1,251,393.78

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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.