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Finding the Fourth Proportional to 454,908.80, 627,803.56 and 263,986.40

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Solution

The fourth proportional to 454,908.80, 627,803.56 and 263,986.40 is: 364,318.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,908.80 : 627,803.56 = 263,986.40 : x
  2. Step 2: Convert to fraction form
    454,908.80/627,803.56 = 263,986.40/x
  3. Step 3: Cross multiply
    454,908.80x = 627,803.56 × 263,986.40
  4. Step 4: Simplify right side
    454,908.80x = 165,731,601,711.58
  5. Step 5: Solve for x
    x = 165,731,601,711.58/454,908.80
  6. Step 6: Final answer
    x = 364,318.30

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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.