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Finding the Fourth Proportional to 474,817.78, 655,248.24 and 259,957.79

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Solution

The fourth proportional to 474,817.78, 655,248.24 and 259,957.79 is: 358,741.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,817.78 : 655,248.24 = 259,957.79 : x
  2. Step 2: Convert to fraction form
    474,817.78/655,248.24 = 259,957.79/x
  3. Step 3: Cross multiply
    474,817.78x = 655,248.24 × 259,957.79
  4. Step 4: Simplify right side
    474,817.78x = 170,336,884,781.32
  5. Step 5: Solve for x
    x = 170,336,884,781.32/474,817.78
  6. Step 6: Final answer
    x = 358,741.59

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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.