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Finding the Fourth Proportional to 291,950.40, 437,234.40 and 197,947.20

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Solution

The fourth proportional to 291,950.40, 437,234.40 and 197,947.20 is: 296,452.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,950.40 : 437,234.40 = 197,947.20 : x
  2. Step 2: Convert to fraction form
    291,950.40/437,234.40 = 197,947.20/x
  3. Step 3: Cross multiply
    291,950.40x = 437,234.40 × 197,947.20
  4. Step 4: Simplify right side
    291,950.40x = 86,549,325,223.68
  5. Step 5: Solve for x
    x = 86,549,325,223.68/291,950.40
  6. Step 6: Final answer
    x = 296,452.15

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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.