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Finding the Fourth Proportional to 401,060.84, 553,366.50 and 222,212.84

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Solution

The fourth proportional to 401,060.84, 553,366.50 and 222,212.84 is: 306,599.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,060.84 : 553,366.50 = 222,212.84 : x
  2. Step 2: Convert to fraction form
    401,060.84/553,366.50 = 222,212.84/x
  3. Step 3: Cross multiply
    401,060.84x = 553,366.50 × 222,212.84
  4. Step 4: Simplify right side
    401,060.84x = 122,965,141,525.86
  5. Step 5: Solve for x
    x = 122,965,141,525.86/401,060.84
  6. Step 6: Final answer
    x = 306,599.72

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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.