Home / 1,173,839.28-1,759,182.12-640,561.20

Finding the Fourth Proportional to 1,173,839.28, 1,759,182.12 and 640,561.20

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Solution

The fourth proportional to 1,173,839.28, 1,759,182.12 and 640,561.20 is: 959,981.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,839.28 : 1,759,182.12 = 640,561.20 : x
  2. Step 2: Convert to fraction form
    1,173,839.28/1,759,182.12 = 640,561.20/x
  3. Step 3: Cross multiply
    1,173,839.28x = 1,759,182.12 × 640,561.20
  4. Step 4: Simplify right side
    1,173,839.28x = 1,126,863,809,805.74
  5. Step 5: Solve for x
    x = 1,126,863,809,805.74/1,173,839.28
  6. Step 6: Final answer
    x = 959,981.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.