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Finding the Fourth Proportional to 1,005,612, 1,387,770.84 and 546,757.44

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Solution

The fourth proportional to 1,005,612, 1,387,770.84 and 546,757.44 is: 754,539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,612 : 1,387,770.84 = 546,757.44 : x
  2. Step 2: Convert to fraction form
    1,005,612/1,387,770.84 = 546,757.44/x
  3. Step 3: Cross multiply
    1,005,612x = 1,387,770.84 × 546,757.44
  4. Step 4: Simplify right side
    1,005,612x = 758,774,031,785.05
  5. Step 5: Solve for x
    x = 758,774,031,785.05/1,005,612
  6. Step 6: Final answer
    x = 754,539.56

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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.