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Finding the Fourth Proportional to 996,886.74, 1,375,686 and 567,157.62

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Solution

The fourth proportional to 996,886.74, 1,375,686 and 567,157.62 is: 782,667.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,886.74 : 1,375,686 = 567,157.62 : x
  2. Step 2: Convert to fraction form
    996,886.74/1,375,686 = 567,157.62/x
  3. Step 3: Cross multiply
    996,886.74x = 1,375,686 × 567,157.62
  4. Step 4: Simplify right side
    996,886.74x = 780,230,797,627.32
  5. Step 5: Solve for x
    x = 780,230,797,627.32/996,886.74
  6. Step 6: Final answer
    x = 782,667.44

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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.