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Finding the Fourth Proportional to 627,982.96, 866,639.22 and 359,762.80

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Solution

The fourth proportional to 627,982.96, 866,639.22 and 359,762.80 is: 496,485.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,982.96 : 866,639.22 = 359,762.80 : x
  2. Step 2: Convert to fraction form
    627,982.96/866,639.22 = 359,762.80/x
  3. Step 3: Cross multiply
    627,982.96x = 866,639.22 × 359,762.80
  4. Step 4: Simplify right side
    627,982.96x = 311,784,552,377.02
  5. Step 5: Solve for x
    x = 311,784,552,377.02/627,982.96
  6. Step 6: Final answer
    x = 496,485.69

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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.