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Finding the Fourth Proportional to 555,614.44, 766,702.44 and 313,918

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Solution

The fourth proportional to 555,614.44, 766,702.44 and 313,918 is: 433,181.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,614.44 : 766,702.44 = 313,918 : x
  2. Step 2: Convert to fraction form
    555,614.44/766,702.44 = 313,918/x
  3. Step 3: Cross multiply
    555,614.44x = 766,702.44 × 313,918
  4. Step 4: Simplify right side
    555,614.44x = 240,681,696,559.92
  5. Step 5: Solve for x
    x = 240,681,696,559.92/555,614.44
  6. Step 6: Final answer
    x = 433,181.14

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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.