Home / 1,261,105.59-1,740,367.68-688,177.20

Finding the Fourth Proportional to 1,261,105.59, 1,740,367.68 and 688,177.20

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Solution

The fourth proportional to 1,261,105.59, 1,740,367.68 and 688,177.20 is: 949,707.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,105.59 : 1,740,367.68 = 688,177.20 : x
  2. Step 2: Convert to fraction form
    1,261,105.59/1,740,367.68 = 688,177.20/x
  3. Step 3: Cross multiply
    1,261,105.59x = 1,740,367.68 × 688,177.20
  4. Step 4: Simplify right side
    1,261,105.59x = 1,197,681,356,992.90
  5. Step 5: Solve for x
    x = 1,197,681,356,992.90/1,261,105.59
  6. Step 6: Final answer
    x = 949,707.44

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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.