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Finding the Fourth Proportional to 288,737.27, 398,269.68 and 185,207.61

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Solution

The fourth proportional to 288,737.27, 398,269.68 and 185,207.61 is: 255,466.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,737.27 : 398,269.68 = 185,207.61 : x
  2. Step 2: Convert to fraction form
    288,737.27/398,269.68 = 185,207.61/x
  3. Step 3: Cross multiply
    288,737.27x = 398,269.68 × 185,207.61
  4. Step 4: Simplify right side
    288,737.27x = 73,762,575,568.26
  5. Step 5: Solve for x
    x = 73,762,575,568.26/288,737.27
  6. Step 6: Final answer
    x = 255,466.07

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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.