Home / 1,287,189.56-1,776,333.84-714,283.04

Finding the Fourth Proportional to 1,287,189.56, 1,776,333.84 and 714,283.04

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Solution

The fourth proportional to 1,287,189.56, 1,776,333.84 and 714,283.04 is: 985,717.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,189.56 : 1,776,333.84 = 714,283.04 : x
  2. Step 2: Convert to fraction form
    1,287,189.56/1,776,333.84 = 714,283.04/x
  3. Step 3: Cross multiply
    1,287,189.56x = 1,776,333.84 × 714,283.04
  4. Step 4: Simplify right side
    1,287,189.56x = 1,268,805,135,290.07
  5. Step 5: Solve for x
    x = 1,268,805,135,290.07/1,287,189.56
  6. Step 6: Final answer
    x = 985,717.39

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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.