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Finding the Fourth Proportional to 317,247.60, 437,838.28 and 189,923.12

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Solution

The fourth proportional to 317,247.60, 437,838.28 and 189,923.12 is: 262,115.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,247.60 : 437,838.28 = 189,923.12 : x
  2. Step 2: Convert to fraction form
    317,247.60/437,838.28 = 189,923.12/x
  3. Step 3: Cross multiply
    317,247.60x = 437,838.28 × 189,923.12
  4. Step 4: Simplify right side
    317,247.60x = 83,155,612,193.03
  5. Step 5: Solve for x
    x = 83,155,612,193.03/317,247.60
  6. Step 6: Final answer
    x = 262,115.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.