Home / 657,519.88-986,181.18-208,182.50

Finding the Fourth Proportional to 657,519.88, 986,181.18 and 208,182.50

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Solution

The fourth proportional to 657,519.88, 986,181.18 and 208,182.50 is: 312,242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,519.88 : 986,181.18 = 208,182.50 : x
  2. Step 2: Convert to fraction form
    657,519.88/986,181.18 = 208,182.50/x
  3. Step 3: Cross multiply
    657,519.88x = 986,181.18 × 208,182.50
  4. Step 4: Simplify right side
    657,519.88x = 205,305,667,039.21
  5. Step 5: Solve for x
    x = 205,305,667,039.21/657,519.88
  6. Step 6: Final answer
    x = 312,242.52

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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.