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Finding the Fourth Proportional to 457,736.67, 631,651.30 and 253,775.68

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Solution

The fourth proportional to 457,736.67, 631,651.30 and 253,775.68 is: 350,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,736.67 : 631,651.30 = 253,775.68 : x
  2. Step 2: Convert to fraction form
    457,736.67/631,651.30 = 253,775.68/x
  3. Step 3: Cross multiply
    457,736.67x = 631,651.30 × 253,775.68
  4. Step 4: Simplify right side
    457,736.67x = 160,297,735,966.82
  5. Step 5: Solve for x
    x = 160,297,735,966.82/457,736.67
  6. Step 6: Final answer
    x = 350,196.40

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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.