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Finding the Fourth Proportional to 401,527.11, 554,097.88 and 220,237.44

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Solution

The fourth proportional to 401,527.11, 554,097.88 and 220,237.44 is: 303,922.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,527.11 : 554,097.88 = 220,237.44 : x
  2. Step 2: Convert to fraction form
    401,527.11/554,097.88 = 220,237.44/x
  3. Step 3: Cross multiply
    401,527.11x = 554,097.88 × 220,237.44
  4. Step 4: Simplify right side
    401,527.11x = 122,033,098,600.63
  5. Step 5: Solve for x
    x = 122,033,098,600.63/401,527.11
  6. Step 6: Final answer
    x = 303,922.44

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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.