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Finding the Fourth Proportional to 547,797.20, 820,140.60 and 547,797.20

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Solution

The fourth proportional to 547,797.20, 820,140.60 and 547,797.20 is: 820,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,797.20 : 820,140.60 = 547,797.20 : x
  2. Step 2: Convert to fraction form
    547,797.20/820,140.60 = 547,797.20/x
  3. Step 3: Cross multiply
    547,797.20x = 820,140.60 × 547,797.20
  4. Step 4: Simplify right side
    547,797.20x = 449,270,724,286.32
  5. Step 5: Solve for x
    x = 449,270,724,286.32/547,797.20
  6. Step 6: Final answer
    x = 820,140.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.