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Finding the Fourth Proportional to 361,954.84, 499,511.01 and 218,687.17

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Solution

The fourth proportional to 361,954.84, 499,511.01 and 218,687.17 is: 301,796.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,954.84 : 499,511.01 = 218,687.17 : x
  2. Step 2: Convert to fraction form
    361,954.84/499,511.01 = 218,687.17/x
  3. Step 3: Cross multiply
    361,954.84x = 499,511.01 × 218,687.17
  4. Step 4: Simplify right side
    361,954.84x = 109,236,649,160.74
  5. Step 5: Solve for x
    x = 109,236,649,160.74/361,954.84
  6. Step 6: Final answer
    x = 301,796.35

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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.