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Finding the Fourth Proportional to 277,863.90, 383,423.67 and 156,995.70

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Solution

The fourth proportional to 277,863.90, 383,423.67 and 156,995.70 is: 216,637.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,863.90 : 383,423.67 = 156,995.70 : x
  2. Step 2: Convert to fraction form
    277,863.90/383,423.67 = 156,995.70/x
  3. Step 3: Cross multiply
    277,863.90x = 383,423.67 × 156,995.70
  4. Step 4: Simplify right side
    277,863.90x = 60,195,867,468.22
  5. Step 5: Solve for x
    x = 60,195,867,468.22/277,863.90
  6. Step 6: Final answer
    x = 216,637.96

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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.