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Finding the Fourth Proportional to 277,922.70, 383,490.92 and 157,019.87

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Solution

The fourth proportional to 277,922.70, 383,490.92 and 157,019.87 is: 216,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,922.70 : 383,490.92 = 157,019.87 : x
  2. Step 2: Convert to fraction form
    277,922.70/383,490.92 = 157,019.87/x
  3. Step 3: Cross multiply
    277,922.70x = 383,490.92 × 157,019.87
  4. Step 4: Simplify right side
    277,922.70x = 60,215,695,297.25
  5. Step 5: Solve for x
    x = 60,215,695,297.25/277,922.70
  6. Step 6: Final answer
    x = 216,663.46

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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.