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Finding the Fourth Proportional to 544,077.30, 815,131.80 and 465,345.30

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Solution

The fourth proportional to 544,077.30, 815,131.80 and 465,345.30 is: 697,176.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,077.30 : 815,131.80 = 465,345.30 : x
  2. Step 2: Convert to fraction form
    544,077.30/815,131.80 = 465,345.30/x
  3. Step 3: Cross multiply
    544,077.30x = 815,131.80 × 465,345.30
  4. Step 4: Simplify right side
    544,077.30x = 379,317,752,010.54
  5. Step 5: Solve for x
    x = 379,317,752,010.54/544,077.30
  6. Step 6: Final answer
    x = 697,176.21

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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.