Home / 807,999.20-1,115,046.66-445,437.20

Finding the Fourth Proportional to 807,999.20, 1,115,046.66 and 445,437.20

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Solution

The fourth proportional to 807,999.20, 1,115,046.66 and 445,437.20 is: 614,707.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,999.20 : 1,115,046.66 = 445,437.20 : x
  2. Step 2: Convert to fraction form
    807,999.20/1,115,046.66 = 445,437.20/x
  3. Step 3: Cross multiply
    807,999.20x = 1,115,046.66 × 445,437.20
  4. Step 4: Simplify right side
    807,999.20x = 496,683,262,099.75
  5. Step 5: Solve for x
    x = 496,683,262,099.75/807,999.20
  6. Step 6: Final answer
    x = 614,707.62

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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.