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Finding the Fourth Proportional to 439,312.32, 606,251.52 and 238,108.32

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Solution

The fourth proportional to 439,312.32, 606,251.52 and 238,108.32 is: 328,589.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,312.32 : 606,251.52 = 238,108.32 : x
  2. Step 2: Convert to fraction form
    439,312.32/606,251.52 = 238,108.32/x
  3. Step 3: Cross multiply
    439,312.32x = 606,251.52 × 238,108.32
  4. Step 4: Simplify right side
    439,312.32x = 144,353,530,924.65
  5. Step 5: Solve for x
    x = 144,353,530,924.65/439,312.32
  6. Step 6: Final answer
    x = 328,589.76

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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.