Home / 657,707.11-986,588.10-208,418.04

Finding the Fourth Proportional to 657,707.11, 986,588.10 and 208,418.04

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Solution

The fourth proportional to 657,707.11, 986,588.10 and 208,418.04 is: 312,635.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,707.11 : 986,588.10 = 208,418.04 : x
  2. Step 2: Convert to fraction form
    657,707.11/986,588.10 = 208,418.04/x
  3. Step 3: Cross multiply
    657,707.11x = 986,588.10 × 208,418.04
  4. Step 4: Simplify right side
    657,707.11x = 205,622,753,937.95
  5. Step 5: Solve for x
    x = 205,622,753,937.95/657,707.11
  6. Step 6: Final answer
    x = 312,635.75

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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.