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Finding the Fourth Proportional to 414,062.17, 621,093.52 and 129,774.89

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Solution

The fourth proportional to 414,062.17, 621,093.52 and 129,774.89 is: 194,662.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,062.17 : 621,093.52 = 129,774.89 : x
  2. Step 2: Convert to fraction form
    414,062.17/621,093.52 = 129,774.89/x
  3. Step 3: Cross multiply
    414,062.17x = 621,093.52 × 129,774.89
  4. Step 4: Simplify right side
    414,062.17x = 80,602,344,222.68
  5. Step 5: Solve for x
    x = 80,602,344,222.68/414,062.17
  6. Step 6: Final answer
    x = 194,662.42

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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.