Home / 657,105.03-985,779.05-207,938.97

Finding the Fourth Proportional to 657,105.03, 985,779.05 and 207,938.97

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Solution

The fourth proportional to 657,105.03, 985,779.05 and 207,938.97 is: 311,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,105.03 : 985,779.05 = 207,938.97 : x
  2. Step 2: Convert to fraction form
    657,105.03/985,779.05 = 207,938.97/x
  3. Step 3: Cross multiply
    657,105.03x = 985,779.05 × 207,938.97
  4. Step 4: Simplify right side
    657,105.03x = 204,981,879,264.88
  5. Step 5: Solve for x
    x = 204,981,879,264.88/657,105.03
  6. Step 6: Final answer
    x = 311,946.90

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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.