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Finding the Fourth Proportional to 627,623.40, 866,125.52 and 341,143.44

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Solution

The fourth proportional to 627,623.40, 866,125.52 and 341,143.44 is: 470,780.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,623.40 : 866,125.52 = 341,143.44 : x
  2. Step 2: Convert to fraction form
    627,623.40/866,125.52 = 341,143.44/x
  3. Step 3: Cross multiply
    627,623.40x = 866,125.52 × 341,143.44
  4. Step 4: Simplify right side
    627,623.40x = 295,473,039,364.59
  5. Step 5: Solve for x
    x = 295,473,039,364.59/627,623.40
  6. Step 6: Final answer
    x = 470,780.79

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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.