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Finding the Fourth Proportional to 349,710.90, 524,825.55 and 231,342.90

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Solution

The fourth proportional to 349,710.90, 524,825.55 and 231,342.90 is: 347,185.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,710.90 : 524,825.55 = 231,342.90 : x
  2. Step 2: Convert to fraction form
    349,710.90/524,825.55 = 231,342.90/x
  3. Step 3: Cross multiply
    349,710.90x = 524,825.55 × 231,342.90
  4. Step 4: Simplify right side
    349,710.90x = 121,414,664,731.10
  5. Step 5: Solve for x
    x = 121,414,664,731.10/349,710.90
  6. Step 6: Final answer
    x = 347,185.82

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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.