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Finding the Fourth Proportional to 469,179.90, 647,468.73 and 254,319.93

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Solution

The fourth proportional to 469,179.90, 647,468.73 and 254,319.93 is: 350,961.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,179.90 : 647,468.73 = 254,319.93 : x
  2. Step 2: Convert to fraction form
    469,179.90/647,468.73 = 254,319.93/x
  3. Step 3: Cross multiply
    469,179.90x = 647,468.73 × 254,319.93
  4. Step 4: Simplify right side
    469,179.90x = 164,664,202,090.79
  5. Step 5: Solve for x
    x = 164,664,202,090.79/469,179.90
  6. Step 6: Final answer
    x = 350,961.76

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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.