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Finding the Fourth Proportional to 1,494,710.96, 2,062,745 and 815,691.28

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Solution

The fourth proportional to 1,494,710.96, 2,062,745 and 815,691.28 is: 1,125,677.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494,710.96 : 2,062,745 = 815,691.28 : x
  2. Step 2: Convert to fraction form
    1,494,710.96/2,062,745 = 815,691.28/x
  3. Step 3: Cross multiply
    1,494,710.96x = 2,062,745 × 815,691.28
  4. Step 4: Simplify right side
    1,494,710.96x = 1,682,563,109,363.60
  5. Step 5: Solve for x
    x = 1,682,563,109,363.60/1,494,710.96
  6. Step 6: Final answer
    x = 1,125,677.91

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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.