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Finding the Fourth Proportional to 300,872.03, 415,148.96 and 193,417.43

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Solution

The fourth proportional to 300,872.03, 415,148.96 and 193,417.43 is: 266,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,872.03 : 415,148.96 = 193,417.43 : x
  2. Step 2: Convert to fraction form
    300,872.03/415,148.96 = 193,417.43/x
  3. Step 3: Cross multiply
    300,872.03x = 415,148.96 × 193,417.43
  4. Step 4: Simplify right side
    300,872.03x = 80,297,043,318.17
  5. Step 5: Solve for x
    x = 80,297,043,318.17/300,872.03
  6. Step 6: Final answer
    x = 266,881.05

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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.