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Finding the Fourth Proportional to 791,714.70, 1,107,000.90 and 791,714.70

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Solution

The fourth proportional to 791,714.70, 1,107,000.90 and 791,714.70 is: 1,107,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,714.70 : 1,107,000.90 = 791,714.70 : x
  2. Step 2: Convert to fraction form
    791,714.70/1,107,000.90 = 791,714.70/x
  3. Step 3: Cross multiply
    791,714.70x = 1,107,000.90 × 791,714.70
  4. Step 4: Simplify right side
    791,714.70x = 876,428,885,443.23
  5. Step 5: Solve for x
    x = 876,428,885,443.23/791,714.70
  6. Step 6: Final answer
    x = 1,107,000.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.