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Finding the Fourth Proportional to 519,741, 717,242.58 and 281,277

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Solution

The fourth proportional to 519,741, 717,242.58 and 281,277 is: 388,162.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,741 : 717,242.58 = 281,277 : x
  2. Step 2: Convert to fraction form
    519,741/717,242.58 = 281,277/x
  3. Step 3: Cross multiply
    519,741x = 717,242.58 × 281,277
  4. Step 4: Simplify right side
    519,741x = 201,743,841,174.66
  5. Step 5: Solve for x
    x = 201,743,841,174.66/519,741
  6. Step 6: Final answer
    x = 388,162.26

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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.