Home / 657,339.89-986,157.52-208,087.72

Finding the Fourth Proportional to 657,339.89, 986,157.52 and 208,087.72

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Solution

The fourth proportional to 657,339.89, 986,157.52 and 208,087.72 is: 312,178.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,339.89 : 986,157.52 = 208,087.72 : x
  2. Step 2: Convert to fraction form
    657,339.89/986,157.52 = 208,087.72/x
  3. Step 3: Cross multiply
    657,339.89x = 986,157.52 × 208,087.72
  4. Step 4: Simplify right side
    657,339.89x = 205,207,266,912.04
  5. Step 5: Solve for x
    x = 205,207,266,912.04/657,339.89
  6. Step 6: Final answer
    x = 312,178.33

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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.