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Finding the Fourth Proportional to 547,443.90, 821,626.65 and 267,200.70

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Solution

The fourth proportional to 547,443.90, 821,626.65 and 267,200.70 is: 401,025.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,443.90 : 821,626.65 = 267,200.70 : x
  2. Step 2: Convert to fraction form
    547,443.90/821,626.65 = 267,200.70/x
  3. Step 3: Cross multiply
    547,443.90x = 821,626.65 × 267,200.70
  4. Step 4: Simplify right side
    547,443.90x = 219,539,216,018.66
  5. Step 5: Solve for x
    x = 219,539,216,018.66/547,443.90
  6. Step 6: Final answer
    x = 401,025.96

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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.