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Finding the Fourth Proportional to 284,085.84, 391,816.64 and 182,120.88

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Solution

The fourth proportional to 284,085.84, 391,816.64 and 182,120.88 is: 251,184.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,085.84 : 391,816.64 = 182,120.88 : x
  2. Step 2: Convert to fraction form
    284,085.84/391,816.64 = 182,120.88/x
  3. Step 3: Cross multiply
    284,085.84x = 391,816.64 × 182,120.88
  4. Step 4: Simplify right side
    284,085.84x = 71,357,991,275.44
  5. Step 5: Solve for x
    x = 71,357,991,275.44/284,085.84
  6. Step 6: Final answer
    x = 251,184.61

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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.