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Finding the Fourth Proportional to 300,859.96, 415,228.20 and 173,532.76

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Solution

The fourth proportional to 300,859.96, 415,228.20 and 173,532.76 is: 239,499.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,859.96 : 415,228.20 = 173,532.76 : x
  2. Step 2: Convert to fraction form
    300,859.96/415,228.20 = 173,532.76/x
  3. Step 3: Cross multiply
    300,859.96x = 415,228.20 × 173,532.76
  4. Step 4: Simplify right side
    300,859.96x = 72,055,695,575.83
  5. Step 5: Solve for x
    x = 72,055,695,575.83/300,859.96
  6. Step 6: Final answer
    x = 239,499.12

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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.