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Finding the Fourth Proportional to 291,498.27, 436,879.01 and 156,226.17

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Solution

The fourth proportional to 291,498.27, 436,879.01 and 156,226.17 is: 234,141.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,498.27 : 436,879.01 = 156,226.17 : x
  2. Step 2: Convert to fraction form
    291,498.27/436,879.01 = 156,226.17/x
  3. Step 3: Cross multiply
    291,498.27x = 436,879.01 × 156,226.17
  4. Step 4: Simplify right side
    291,498.27x = 68,251,934,485.69
  5. Step 5: Solve for x
    x = 68,251,934,485.69/291,498.27
  6. Step 6: Final answer
    x = 234,141.82

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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.