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Finding the Fourth Proportional to 440,449.92, 660,718.62 and 140,855.22

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Solution

The fourth proportional to 440,449.92, 660,718.62 and 140,855.22 is: 211,296.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,449.92 : 660,718.62 = 140,855.22 : x
  2. Step 2: Convert to fraction form
    440,449.92/660,718.62 = 140,855.22/x
  3. Step 3: Cross multiply
    440,449.92x = 660,718.62 × 140,855.22
  4. Step 4: Simplify right side
    440,449.92x = 93,065,666,578.20
  5. Step 5: Solve for x
    x = 93,065,666,578.20/440,449.92
  6. Step 6: Final answer
    x = 211,296.82

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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.