Home / 1,253,871.60-1,730,327.56-680,915.88

Finding the Fourth Proportional to 1,253,871.60, 1,730,327.56 and 680,915.88

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Solution

The fourth proportional to 1,253,871.60, 1,730,327.56 and 680,915.88 is: 939,655.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,871.60 : 1,730,327.56 = 680,915.88 : x
  2. Step 2: Convert to fraction form
    1,253,871.60/1,730,327.56 = 680,915.88/x
  3. Step 3: Cross multiply
    1,253,871.60x = 1,730,327.56 × 680,915.88
  4. Step 4: Simplify right side
    1,253,871.60x = 1,178,207,513,205.65
  5. Step 5: Solve for x
    x = 1,178,207,513,205.65/1,253,871.60
  6. Step 6: Final answer
    x = 939,655.63

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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.