Home / 460,621.20-691,132.56-161,316.48

Finding the Fourth Proportional to 460,621.20, 691,132.56 and 161,316.48

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Solution

The fourth proportional to 460,621.20, 691,132.56 and 161,316.48 is: 242,045.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,621.20 : 691,132.56 = 161,316.48 : x
  2. Step 2: Convert to fraction form
    460,621.20/691,132.56 = 161,316.48/x
  3. Step 3: Cross multiply
    460,621.20x = 691,132.56 × 161,316.48
  4. Step 4: Simplify right side
    460,621.20x = 111,491,071,792.59
  5. Step 5: Solve for x
    x = 111,491,071,792.59/460,621.20
  6. Step 6: Final answer
    x = 242,045.03

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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.