Home / 1,285,177.20-1,773,615.14-712,205.07

Finding the Fourth Proportional to 1,285,177.20, 1,773,615.14 and 712,205.07

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Solution

The fourth proportional to 1,285,177.20, 1,773,615.14 and 712,205.07 is: 982,882.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,177.20 : 1,773,615.14 = 712,205.07 : x
  2. Step 2: Convert to fraction form
    1,285,177.20/1,773,615.14 = 712,205.07/x
  3. Step 3: Cross multiply
    1,285,177.20x = 1,773,615.14 × 712,205.07
  4. Step 4: Simplify right side
    1,285,177.20x = 1,263,177,691,375.73
  5. Step 5: Solve for x
    x = 1,263,177,691,375.73/1,285,177.20
  6. Step 6: Final answer
    x = 982,882.12

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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.