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Finding the Fourth Proportional to 440,040.96, 660,395.76 and 322,016.88

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Solution

The fourth proportional to 440,040.96, 660,395.76 and 322,016.88 is: 483,269.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,040.96 : 660,395.76 = 322,016.88 : x
  2. Step 2: Convert to fraction form
    440,040.96/660,395.76 = 322,016.88/x
  3. Step 3: Cross multiply
    440,040.96x = 660,395.76 × 322,016.88
  4. Step 4: Simplify right side
    440,040.96x = 212,658,582,200.43
  5. Step 5: Solve for x
    x = 212,658,582,200.43/440,040.96
  6. Step 6: Final answer
    x = 483,269.97

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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.