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Finding the Fourth Proportional to 666,346.84, 999,519.48 and 217,067

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Solution

The fourth proportional to 666,346.84, 999,519.48 and 217,067 is: 325,600.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,346.84 : 999,519.48 = 217,067 : x
  2. Step 2: Convert to fraction form
    666,346.84/999,519.48 = 217,067/x
  3. Step 3: Cross multiply
    666,346.84x = 999,519.48 × 217,067
  4. Step 4: Simplify right side
    666,346.84x = 216,962,694,965.16
  5. Step 5: Solve for x
    x = 216,962,694,965.16/666,346.84
  6. Step 6: Final answer
    x = 325,600.25

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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.