Home / 440,187.17-660,193.28-215,451.05

Finding the Fourth Proportional to 440,187.17, 660,193.28 and 215,451.05

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Solution

The fourth proportional to 440,187.17, 660,193.28 and 215,451.05 is: 323,133.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,187.17 : 660,193.28 = 215,451.05 : x
  2. Step 2: Convert to fraction form
    440,187.17/660,193.28 = 215,451.05/x
  3. Step 3: Cross multiply
    440,187.17x = 660,193.28 × 215,451.05
  4. Step 4: Simplify right side
    440,187.17x = 142,239,334,301.69
  5. Step 5: Solve for x
    x = 142,239,334,301.69/440,187.17
  6. Step 6: Final answer
    x = 323,133.76

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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.