Home / 657,339.49-986,156.93-208,087.30

Finding the Fourth Proportional to 657,339.49, 986,156.93 and 208,087.30

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Solution

The fourth proportional to 657,339.49, 986,156.93 and 208,087.30 is: 312,177.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,339.49 : 986,156.93 = 208,087.30 : x
  2. Step 2: Convert to fraction form
    657,339.49/986,156.93 = 208,087.30/x
  3. Step 3: Cross multiply
    657,339.49x = 986,156.93 × 208,087.30
  4. Step 4: Simplify right side
    657,339.49x = 205,206,732,939.99
  5. Step 5: Solve for x
    x = 205,206,732,939.99/657,339.49
  6. Step 6: Final answer
    x = 312,177.70

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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.