Home / 657,707.30-986,588.39-208,418.22

Finding the Fourth Proportional to 657,707.30, 986,588.39 and 208,418.22

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Solution

The fourth proportional to 657,707.30, 986,588.39 and 208,418.22 is: 312,636.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,707.30 : 986,588.39 = 208,418.22 : x
  2. Step 2: Convert to fraction form
    657,707.30/986,588.39 = 208,418.22/x
  3. Step 3: Cross multiply
    657,707.30x = 986,588.39 × 208,418.22
  4. Step 4: Simplify right side
    657,707.30x = 205,622,995,074.38
  5. Step 5: Solve for x
    x = 205,622,995,074.38/657,707.30
  6. Step 6: Final answer
    x = 312,636.02

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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.