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Finding the Fourth Proportional to 289,002.33, 398,818.28 and 161,677.62

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Solution

The fourth proportional to 289,002.33, 398,818.28 and 161,677.62 is: 223,112.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,002.33 : 398,818.28 = 161,677.62 : x
  2. Step 2: Convert to fraction form
    289,002.33/398,818.28 = 161,677.62/x
  3. Step 3: Cross multiply
    289,002.33x = 398,818.28 × 161,677.62
  4. Step 4: Simplify right side
    289,002.33x = 64,479,990,727.09
  5. Step 5: Solve for x
    x = 64,479,990,727.09/289,002.33
  6. Step 6: Final answer
    x = 223,112.36

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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.