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Finding the Fourth Proportional to 400,502.44, 600,811.98 and 120,041.56

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Solution

The fourth proportional to 400,502.44, 600,811.98 and 120,041.56 is: 180,079.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,502.44 : 600,811.98 = 120,041.56 : x
  2. Step 2: Convert to fraction form
    400,502.44/600,811.98 = 120,041.56/x
  3. Step 3: Cross multiply
    400,502.44x = 600,811.98 × 120,041.56
  4. Step 4: Simplify right side
    400,502.44x = 72,122,407,345.89
  5. Step 5: Solve for x
    x = 72,122,407,345.89/400,502.44
  6. Step 6: Final answer
    x = 180,079.82

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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.