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Finding the Fourth Proportional to 693,311.26, 955,844.31 and 550,543.90

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Solution

The fourth proportional to 693,311.26, 955,844.31 and 550,543.90 is: 759,015.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,311.26 : 955,844.31 = 550,543.90 : x
  2. Step 2: Convert to fraction form
    693,311.26/955,844.31 = 550,543.90/x
  3. Step 3: Cross multiply
    693,311.26x = 955,844.31 × 550,543.90
  4. Step 4: Simplify right side
    693,311.26x = 526,234,254,220.21
  5. Step 5: Solve for x
    x = 526,234,254,220.21/693,311.26
  6. Step 6: Final answer
    x = 759,015.88

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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.