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Finding the Fourth Proportional to 362,455.80, 543,149.10 and 262,825.80

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Solution

The fourth proportional to 362,455.80, 543,149.10 and 262,825.80 is: 393,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,455.80 : 543,149.10 = 262,825.80 : x
  2. Step 2: Convert to fraction form
    362,455.80/543,149.10 = 262,825.80/x
  3. Step 3: Cross multiply
    362,455.80x = 543,149.10 × 262,825.80
  4. Step 4: Simplify right side
    362,455.80x = 142,753,596,726.78
  5. Step 5: Solve for x
    x = 142,753,596,726.78/362,455.80
  6. Step 6: Final answer
    x = 393,851.05

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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.