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Finding the Fourth Proportional to 515,774.24, 773,670.91 and 178,825.87

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Solution

The fourth proportional to 515,774.24, 773,670.91 and 178,825.87 is: 268,242.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,774.24 : 773,670.91 = 178,825.87 : x
  2. Step 2: Convert to fraction form
    515,774.24/773,670.91 = 178,825.87/x
  3. Step 3: Cross multiply
    515,774.24x = 773,670.91 × 178,825.87
  4. Step 4: Simplify right side
    515,774.24x = 138,352,373,574.44
  5. Step 5: Solve for x
    x = 138,352,373,574.44/515,774.24
  6. Step 6: Final answer
    x = 268,242.12

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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.