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Finding the Fourth Proportional to 347,714.38, 521,571.57 and 189,856.72

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Solution

The fourth proportional to 347,714.38, 521,571.57 and 189,856.72 is: 284,785.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,714.38 : 521,571.57 = 189,856.72 : x
  2. Step 2: Convert to fraction form
    347,714.38/521,571.57 = 189,856.72/x
  3. Step 3: Cross multiply
    347,714.38x = 521,571.57 × 189,856.72
  4. Step 4: Simplify right side
    347,714.38x = 99,023,867,525.45
  5. Step 5: Solve for x
    x = 99,023,867,525.45/347,714.38
  6. Step 6: Final answer
    x = 284,785.08

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Similar ratio
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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.