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Finding the Fourth Proportional to 570,712.44, 856,105.56 and 191,617.86

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Solution

The fourth proportional to 570,712.44, 856,105.56 and 191,617.86 is: 287,439.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,712.44 : 856,105.56 = 191,617.86 : x
  2. Step 2: Convert to fraction form
    570,712.44/856,105.56 = 191,617.86/x
  3. Step 3: Cross multiply
    570,712.44x = 856,105.56 × 191,617.86
  4. Step 4: Simplify right side
    570,712.44x = 164,045,115,341.30
  5. Step 5: Solve for x
    x = 164,045,115,341.30/570,712.44
  6. Step 6: Final answer
    x = 287,439.18

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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.