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Finding the Fourth Proportional to 627,556.32, 866,034.48 and 341,076.45

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Solution

The fourth proportional to 627,556.32, 866,034.48 and 341,076.45 is: 470,689.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,556.32 : 866,034.48 = 341,076.45 : x
  2. Step 2: Convert to fraction form
    627,556.32/866,034.48 = 341,076.45/x
  3. Step 3: Cross multiply
    627,556.32x = 866,034.48 × 341,076.45
  4. Step 4: Simplify right side
    627,556.32x = 295,383,966,016.00
  5. Step 5: Solve for x
    x = 295,383,966,016.00/627,556.32
  6. Step 6: Final answer
    x = 470,689.17

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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.