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Finding the Fourth Proportional to 264,785.36, 397,377.72 and 140,154.32

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Solution

The fourth proportional to 264,785.36, 397,377.72 and 140,154.32 is: 210,337.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,785.36 : 397,377.72 = 140,154.32 : x
  2. Step 2: Convert to fraction form
    264,785.36/397,377.72 = 140,154.32/x
  3. Step 3: Cross multiply
    264,785.36x = 397,377.72 × 140,154.32
  4. Step 4: Simplify right side
    264,785.36x = 55,694,204,129.75
  5. Step 5: Solve for x
    x = 55,694,204,129.75/264,785.36
  6. Step 6: Final answer
    x = 210,337.17

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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.