Home / 1,143,638.30-1,578,232.88-627,393.24

Finding the Fourth Proportional to 1,143,638.30, 1,578,232.88 and 627,393.24

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Solution

The fourth proportional to 1,143,638.30, 1,578,232.88 and 627,393.24 is: 865,809.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,638.30 : 1,578,232.88 = 627,393.24 : x
  2. Step 2: Convert to fraction form
    1,143,638.30/1,578,232.88 = 627,393.24/x
  3. Step 3: Cross multiply
    1,143,638.30x = 1,578,232.88 × 627,393.24
  4. Step 4: Simplify right side
    1,143,638.30x = 990,172,640,057.73
  5. Step 5: Solve for x
    x = 990,172,640,057.73/1,143,638.30
  6. Step 6: Final answer
    x = 865,809.27

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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.