Home / 641,456.68-885,211.94-354,996.52

Finding the Fourth Proportional to 641,456.68, 885,211.94 and 354,996.52

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Solution

The fourth proportional to 641,456.68, 885,211.94 and 354,996.52 is: 489,896.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,456.68 : 885,211.94 = 354,996.52 : x
  2. Step 2: Convert to fraction form
    641,456.68/885,211.94 = 354,996.52/x
  3. Step 3: Cross multiply
    641,456.68x = 885,211.94 × 354,996.52
  4. Step 4: Simplify right side
    641,456.68x = 314,247,158,162.45
  5. Step 5: Solve for x
    x = 314,247,158,162.45/641,456.68
  6. Step 6: Final answer
    x = 489,896.15

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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.