Home / 662,016.43-913,686.65-403,949.76

Finding the Fourth Proportional to 662,016.43, 913,686.65 and 403,949.76

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Solution

The fourth proportional to 662,016.43, 913,686.65 and 403,949.76 is: 557,514.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,016.43 : 913,686.65 = 403,949.76 : x
  2. Step 2: Convert to fraction form
    662,016.43/913,686.65 = 403,949.76/x
  3. Step 3: Cross multiply
    662,016.43x = 913,686.65 × 403,949.76
  4. Step 4: Simplify right side
    662,016.43x = 369,083,502,982.70
  5. Step 5: Solve for x
    x = 369,083,502,982.70/662,016.43
  6. Step 6: Final answer
    x = 557,514.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.