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Finding the Fourth Proportional to 412,233.20, 618,349.80 and 396,486.80

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Solution

The fourth proportional to 412,233.20, 618,349.80 and 396,486.80 is: 594,730.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,233.20 : 618,349.80 = 396,486.80 : x
  2. Step 2: Convert to fraction form
    412,233.20/618,349.80 = 396,486.80/x
  3. Step 3: Cross multiply
    412,233.20x = 618,349.80 × 396,486.80
  4. Step 4: Simplify right side
    412,233.20x = 245,167,533,482.64
  5. Step 5: Solve for x
    x = 245,167,533,482.64/412,233.20
  6. Step 6: Final answer
    x = 594,730.20

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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.