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Finding the Fourth Proportional to 1,775,322.60, 2,659,922.10 and 826,747.80

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Solution

The fourth proportional to 1,775,322.60, 2,659,922.10 and 826,747.80 is: 1,238,695.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775,322.60 : 2,659,922.10 = 826,747.80 : x
  2. Step 2: Convert to fraction form
    1,775,322.60/2,659,922.10 = 826,747.80/x
  3. Step 3: Cross multiply
    1,775,322.60x = 2,659,922.10 × 826,747.80
  4. Step 4: Simplify right side
    1,775,322.60x = 2,199,084,744,346.38
  5. Step 5: Solve for x
    x = 2,199,084,744,346.38/1,775,322.60
  6. Step 6: Final answer
    x = 1,238,695.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.