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Finding the Fourth Proportional to 264,019.40, 396,029.10 and 220,473.80

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Solution

The fourth proportional to 264,019.40, 396,029.10 and 220,473.80 is: 330,710.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,019.40 : 396,029.10 = 220,473.80 : x
  2. Step 2: Convert to fraction form
    264,019.40/396,029.10 = 220,473.80/x
  3. Step 3: Cross multiply
    264,019.40x = 396,029.10 × 220,473.80
  4. Step 4: Simplify right side
    264,019.40x = 87,314,040,587.58
  5. Step 5: Solve for x
    x = 87,314,040,587.58/264,019.40
  6. Step 6: Final answer
    x = 330,710.70

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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.