Home / 1,252,780.11-1,728,841.26-679,820.33

Finding the Fourth Proportional to 1,252,780.11, 1,728,841.26 and 679,820.33

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Solution

The fourth proportional to 1,252,780.11, 1,728,841.26 and 679,820.33 is: 938,154.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,780.11 : 1,728,841.26 = 679,820.33 : x
  2. Step 2: Convert to fraction form
    1,252,780.11/1,728,841.26 = 679,820.33/x
  3. Step 3: Cross multiply
    1,252,780.11x = 1,728,841.26 × 679,820.33
  4. Step 4: Simplify right side
    1,252,780.11x = 1,175,301,427,246.61
  5. Step 5: Solve for x
    x = 1,175,301,427,246.61/1,252,780.11
  6. Step 6: Final answer
    x = 938,154.60

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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.