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Finding the Fourth Proportional to 627,721.58, 866,245.56 and 341,248.88

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Solution

The fourth proportional to 627,721.58, 866,245.56 and 341,248.88 is: 470,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,721.58 : 866,245.56 = 341,248.88 : x
  2. Step 2: Convert to fraction form
    627,721.58/866,245.56 = 341,248.88/x
  3. Step 3: Cross multiply
    627,721.58x = 866,245.56 × 341,248.88
  4. Step 4: Simplify right side
    627,721.58x = 295,605,322,823.75
  5. Step 5: Solve for x
    x = 295,605,322,823.75/627,721.58
  6. Step 6: Final answer
    x = 470,917.90

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1.5x scale

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.