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Finding the Fourth Proportional to 277,876.20, 417,203.10 and 172,900.20

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Solution

The fourth proportional to 277,876.20, 417,203.10 and 172,900.20 is: 259,592.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,876.20 : 417,203.10 = 172,900.20 : x
  2. Step 2: Convert to fraction form
    277,876.20/417,203.10 = 172,900.20/x
  3. Step 3: Cross multiply
    277,876.20x = 417,203.10 × 172,900.20
  4. Step 4: Simplify right side
    277,876.20x = 72,134,499,430.62
  5. Step 5: Solve for x
    x = 72,134,499,430.62/277,876.20
  6. Step 6: Final answer
    x = 259,592.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.