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Finding the Fourth Proportional to 335,927.20, 503,307.60 and 217,537.60

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Solution

The fourth proportional to 335,927.20, 503,307.60 and 217,537.60 is: 325,928.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,927.20 : 503,307.60 = 217,537.60 : x
  2. Step 2: Convert to fraction form
    335,927.20/503,307.60 = 217,537.60/x
  3. Step 3: Cross multiply
    335,927.20x = 503,307.60 × 217,537.60
  4. Step 4: Simplify right side
    335,927.20x = 109,488,327,365.76
  5. Step 5: Solve for x
    x = 109,488,327,365.76/335,927.20
  6. Step 6: Final answer
    x = 325,928.74

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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.