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Finding the Fourth Proportional to 996,690.96, 1,375,390.80 and 588,924

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Solution

The fourth proportional to 996,690.96, 1,375,390.80 and 588,924 is: 812,689.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,690.96 : 1,375,390.80 = 588,924 : x
  2. Step 2: Convert to fraction form
    996,690.96/1,375,390.80 = 588,924/x
  3. Step 3: Cross multiply
    996,690.96x = 1,375,390.80 × 588,924
  4. Step 4: Simplify right side
    996,690.96x = 810,000,651,499.20
  5. Step 5: Solve for x
    x = 810,000,651,499.20/996,690.96
  6. Step 6: Final answer
    x = 812,689.87

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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.