Home / 1,253,141.76-1,729,289.10-680,169.60

Finding the Fourth Proportional to 1,253,141.76, 1,729,289.10 and 680,169.60

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Solution

The fourth proportional to 1,253,141.76, 1,729,289.10 and 680,169.60 is: 938,608.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,141.76 : 1,729,289.10 = 680,169.60 : x
  2. Step 2: Convert to fraction form
    1,253,141.76/1,729,289.10 = 680,169.60/x
  3. Step 3: Cross multiply
    1,253,141.76x = 1,729,289.10 × 680,169.60
  4. Step 4: Simplify right side
    1,253,141.76x = 1,176,209,875,431.36
  5. Step 5: Solve for x
    x = 1,176,209,875,431.36/1,253,141.76
  6. Step 6: Final answer
    x = 938,608.79

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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.