Home / 1,207,839.20-1,666,635.48-663,998

Finding the Fourth Proportional to 1,207,839.20, 1,666,635.48 and 663,998

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Solution

The fourth proportional to 1,207,839.20, 1,666,635.48 and 663,998 is: 916,216.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,839.20 : 1,666,635.48 = 663,998 : x
  2. Step 2: Convert to fraction form
    1,207,839.20/1,666,635.48 = 663,998/x
  3. Step 3: Cross multiply
    1,207,839.20x = 1,666,635.48 × 663,998
  4. Step 4: Simplify right side
    1,207,839.20x = 1,106,642,625,449.04
  5. Step 5: Solve for x
    x = 1,106,642,625,449.04/1,207,839.20
  6. Step 6: Final answer
    x = 916,216.85

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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.