Home / 320,589.04-442,425.90-177,346.62

Finding the Fourth Proportional to 320,589.04, 442,425.90 and 177,346.62

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Solution

The fourth proportional to 320,589.04, 442,425.90 and 177,346.62 is: 244,745.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,589.04 : 442,425.90 = 177,346.62 : x
  2. Step 2: Convert to fraction form
    320,589.04/442,425.90 = 177,346.62/x
  3. Step 3: Cross multiply
    320,589.04x = 442,425.90 × 177,346.62
  4. Step 4: Simplify right side
    320,589.04x = 78,462,737,965.46
  5. Step 5: Solve for x
    x = 78,462,737,965.46/320,589.04
  6. Step 6: Final answer
    x = 244,745.54

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1.5x scale

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.