Home / 657,631.88-986,491.56-231,116.12

Finding the Fourth Proportional to 657,631.88, 986,491.56 and 231,116.12

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Solution

The fourth proportional to 657,631.88, 986,491.56 and 231,116.12 is: 346,689.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,631.88 : 986,491.56 = 231,116.12 : x
  2. Step 2: Convert to fraction form
    657,631.88/986,491.56 = 231,116.12/x
  3. Step 3: Cross multiply
    657,631.88x = 986,491.56 × 231,116.12
  4. Step 4: Simplify right side
    657,631.88x = 227,994,101,759.95
  5. Step 5: Solve for x
    x = 227,994,101,759.95/657,631.88
  6. Step 6: Final answer
    x = 346,689.55

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1.5x scale

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.