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Finding the Fourth Proportional to 996,887.76, 1,375,687.36 and 567,158.64

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Solution

The fourth proportional to 996,887.76, 1,375,687.36 and 567,158.64 is: 782,668.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,887.76 : 1,375,687.36 = 567,158.64 : x
  2. Step 2: Convert to fraction form
    996,887.76/1,375,687.36 = 567,158.64/x
  3. Step 3: Cross multiply
    996,887.76x = 1,375,687.36 × 567,158.64
  4. Step 4: Simplify right side
    996,887.76x = 780,232,972,162.79
  5. Step 5: Solve for x
    x = 780,232,972,162.79/996,887.76
  6. Step 6: Final answer
    x = 782,668.83

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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.