Home / 440,188.17-660,194.78-215,452.05

Finding the Fourth Proportional to 440,188.17, 660,194.78 and 215,452.05

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Solution

The fourth proportional to 440,188.17, 660,194.78 and 215,452.05 is: 323,135.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,188.17 : 660,194.78 = 215,452.05 : x
  2. Step 2: Convert to fraction form
    440,188.17/660,194.78 = 215,452.05/x
  3. Step 3: Cross multiply
    440,188.17x = 660,194.78 × 215,452.05
  4. Step 4: Simplify right side
    440,188.17x = 142,240,317,673.04
  5. Step 5: Solve for x
    x = 142,240,317,673.04/440,188.17
  6. Step 6: Final answer
    x = 323,135.26

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1.5x scale

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.