Home / 657,331.76-986,111.04-208,045.28

Finding the Fourth Proportional to 657,331.76, 986,111.04 and 208,045.28

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Solution

The fourth proportional to 657,331.76, 986,111.04 and 208,045.28 is: 312,103.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,331.76 : 986,111.04 = 208,045.28 : x
  2. Step 2: Convert to fraction form
    657,331.76/986,111.04 = 208,045.28/x
  3. Step 3: Cross multiply
    657,331.76x = 986,111.04 × 208,045.28
  4. Step 4: Simplify right side
    657,331.76x = 205,155,747,427.89
  5. Step 5: Solve for x
    x = 205,155,747,427.89/657,331.76
  6. Step 6: Final answer
    x = 312,103.81

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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.