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Finding the Fourth Proportional to 503,174.57, 755,111.78 and 325,240.25

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Solution

The fourth proportional to 503,174.57, 755,111.78 and 325,240.25 is: 488,086.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,174.57 : 755,111.78 = 325,240.25 : x
  2. Step 2: Convert to fraction form
    503,174.57/755,111.78 = 325,240.25/x
  3. Step 3: Cross multiply
    503,174.57x = 755,111.78 × 325,240.25
  4. Step 4: Simplify right side
    503,174.57x = 245,592,742,478.94
  5. Step 5: Solve for x
    x = 245,592,742,478.94/503,174.57
  6. Step 6: Final answer
    x = 488,086.56

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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.