Home / 1,215,065.28-1,676,805.66-671,198.88

Finding the Fourth Proportional to 1,215,065.28, 1,676,805.66 and 671,198.88

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Solution

The fourth proportional to 1,215,065.28, 1,676,805.66 and 671,198.88 is: 926,263.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,065.28 : 1,676,805.66 = 671,198.88 : x
  2. Step 2: Convert to fraction form
    1,215,065.28/1,676,805.66 = 671,198.88/x
  3. Step 3: Cross multiply
    1,215,065.28x = 1,676,805.66 × 671,198.88
  4. Step 4: Simplify right side
    1,215,065.28x = 1,125,470,080,969.66
  5. Step 5: Solve for x
    x = 1,125,470,080,969.66/1,215,065.28
  6. Step 6: Final answer
    x = 926,263.06

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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.