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Finding the Fourth Proportional to 414,381.58, 621,510.85 and 114,830.92

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Solution

The fourth proportional to 414,381.58, 621,510.85 and 114,830.92 is: 172,229.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,381.58 : 621,510.85 = 114,830.92 : x
  2. Step 2: Convert to fraction form
    414,381.58/621,510.85 = 114,830.92/x
  3. Step 3: Cross multiply
    414,381.58x = 621,510.85 × 114,830.92
  4. Step 4: Simplify right side
    414,381.58x = 71,368,662,121.33
  5. Step 5: Solve for x
    x = 71,368,662,121.33/414,381.58
  6. Step 6: Final answer
    x = 172,229.33

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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.