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Finding the Fourth Proportional to 277,871.06, 383,469.28 and 170,379.20

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Solution

The fourth proportional to 277,871.06, 383,469.28 and 170,379.20 is: 235,127.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,871.06 : 383,469.28 = 170,379.20 : x
  2. Step 2: Convert to fraction form
    277,871.06/383,469.28 = 170,379.20/x
  3. Step 3: Cross multiply
    277,871.06x = 383,469.28 × 170,379.20
  4. Step 4: Simplify right side
    277,871.06x = 65,335,189,150.98
  5. Step 5: Solve for x
    x = 65,335,189,150.98/277,871.06
  6. Step 6: Final answer
    x = 235,127.72

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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.