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Finding the Fourth Proportional to 474,818.78, 655,225.02 and 259,917.68

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Solution

The fourth proportional to 474,818.78, 655,225.02 and 259,917.68 is: 358,672.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,818.78 : 655,225.02 = 259,917.68 : x
  2. Step 2: Convert to fraction form
    474,818.78/655,225.02 = 259,917.68/x
  3. Step 3: Cross multiply
    474,818.78x = 655,225.02 × 259,917.68
  4. Step 4: Simplify right side
    474,818.78x = 170,304,567,076.35
  5. Step 5: Solve for x
    x = 170,304,567,076.35/474,818.78
  6. Step 6: Final answer
    x = 358,672.77

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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.