Home / 438,639.28-605,350.20-247,582.96

Finding the Fourth Proportional to 438,639.28, 605,350.20 and 247,582.96

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Solution

The fourth proportional to 438,639.28, 605,350.20 and 247,582.96 is: 341,680.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,639.28 : 605,350.20 = 247,582.96 : x
  2. Step 2: Convert to fraction form
    438,639.28/605,350.20 = 247,582.96/x
  3. Step 3: Cross multiply
    438,639.28x = 605,350.20 × 247,582.96
  4. Step 4: Simplify right side
    438,639.28x = 149,874,394,352.59
  5. Step 5: Solve for x
    x = 149,874,394,352.59/438,639.28
  6. Step 6: Final answer
    x = 341,680.29

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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.