Home / 1,143,377.49-1,577,863.20-627,135.59

Finding the Fourth Proportional to 1,143,377.49, 1,577,863.20 and 627,135.59

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Solution

The fourth proportional to 1,143,377.49, 1,577,863.20 and 627,135.59 is: 865,448.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,377.49 : 1,577,863.20 = 627,135.59 : x
  2. Step 2: Convert to fraction form
    1,143,377.49/1,577,863.20 = 627,135.59/x
  3. Step 3: Cross multiply
    1,143,377.49x = 1,577,863.20 × 627,135.59
  4. Step 4: Simplify right side
    1,143,377.49x = 989,534,160,981.97
  5. Step 5: Solve for x
    x = 989,534,160,981.97/1,143,377.49
  6. Step 6: Final answer
    x = 865,448.35

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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.