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Finding the Fourth Proportional to 570,997.18, 856,429.53 and 150,305.86

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Solution

The fourth proportional to 570,997.18, 856,429.53 and 150,305.86 is: 225,441.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,997.18 : 856,429.53 = 150,305.86 : x
  2. Step 2: Convert to fraction form
    570,997.18/856,429.53 = 150,305.86/x
  3. Step 3: Cross multiply
    570,997.18x = 856,429.53 × 150,305.86
  4. Step 4: Simplify right side
    570,997.18x = 128,726,377,036.05
  5. Step 5: Solve for x
    x = 128,726,377,036.05/570,997.18
  6. Step 6: Final answer
    x = 225,441.35

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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.