Home / 1,218,664.13-1,681,946.31-695,375.78

Finding the Fourth Proportional to 1,218,664.13, 1,681,946.31 and 695,375.78

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Solution

The fourth proportional to 1,218,664.13, 1,681,946.31 and 695,375.78 is: 959,726.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,664.13 : 1,681,946.31 = 695,375.78 : x
  2. Step 2: Convert to fraction form
    1,218,664.13/1,681,946.31 = 695,375.78/x
  3. Step 3: Cross multiply
    1,218,664.13x = 1,681,946.31 × 695,375.78
  4. Step 4: Simplify right side
    1,218,664.13x = 1,169,584,718,824.64
  5. Step 5: Solve for x
    x = 1,169,584,718,824.64/1,218,664.13
  6. Step 6: Final answer
    x = 959,726.88

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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.