Home / 1,189,179.50-1,641,067.71-712,251.50

Finding the Fourth Proportional to 1,189,179.50, 1,641,067.71 and 712,251.50

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Solution

The fourth proportional to 1,189,179.50, 1,641,067.71 and 712,251.50 is: 982,907.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,179.50 : 1,641,067.71 = 712,251.50 : x
  2. Step 2: Convert to fraction form
    1,189,179.50/1,641,067.71 = 712,251.50/x
  3. Step 3: Cross multiply
    1,189,179.50x = 1,641,067.71 × 712,251.50
  4. Step 4: Simplify right side
    1,189,179.50x = 1,168,852,938,049.07
  5. Step 5: Solve for x
    x = 1,168,852,938,049.07/1,189,179.50
  6. Step 6: Final answer
    x = 982,907.07

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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.