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Finding the Fourth Proportional to 627,619.36, 866,093.52 and 359,295.52

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Solution

The fourth proportional to 627,619.36, 866,093.52 and 359,295.52 is: 495,815.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,619.36 : 866,093.52 = 359,295.52 : x
  2. Step 2: Convert to fraction form
    627,619.36/866,093.52 = 359,295.52/x
  3. Step 3: Cross multiply
    627,619.36x = 866,093.52 × 359,295.52
  4. Step 4: Simplify right side
    627,619.36x = 311,183,521,637.03
  5. Step 5: Solve for x
    x = 311,183,521,637.03/627,619.36
  6. Step 6: Final answer
    x = 495,815.68

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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.