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Finding the Fourth Proportional to 443,366.44, 611,626.46 and 261,990.62

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Solution

The fourth proportional to 443,366.44, 611,626.46 and 261,990.62 is: 361,417.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,366.44 : 611,626.46 = 261,990.62 : x
  2. Step 2: Convert to fraction form
    443,366.44/611,626.46 = 261,990.62/x
  3. Step 3: Cross multiply
    443,366.44x = 611,626.46 × 261,990.62
  4. Step 4: Simplify right side
    443,366.44x = 160,240,395,463.81
  5. Step 5: Solve for x
    x = 160,240,395,463.81/443,366.44
  6. Step 6: Final answer
    x = 361,417.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.