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Finding the Fourth Proportional to 500,964.66, 691,339.65 and 271,529.22

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Solution

The fourth proportional to 500,964.66, 691,339.65 and 271,529.22 is: 374,714.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,964.66 : 691,339.65 = 271,529.22 : x
  2. Step 2: Convert to fraction form
    500,964.66/691,339.65 = 271,529.22/x
  3. Step 3: Cross multiply
    500,964.66x = 691,339.65 × 271,529.22
  4. Step 4: Simplify right side
    500,964.66x = 187,718,915,919.57
  5. Step 5: Solve for x
    x = 187,718,915,919.57/500,964.66
  6. Step 6: Final answer
    x = 374,714.89

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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.