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Finding the Fourth Proportional to 433,621.68, 650,432.52 and 285,843.12

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Solution

The fourth proportional to 433,621.68, 650,432.52 and 285,843.12 is: 428,764.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,621.68 : 650,432.52 = 285,843.12 : x
  2. Step 2: Convert to fraction form
    433,621.68/650,432.52 = 285,843.12/x
  3. Step 3: Cross multiply
    433,621.68x = 650,432.52 × 285,843.12
  4. Step 4: Simplify right side
    433,621.68x = 185,921,660,866.26
  5. Step 5: Solve for x
    x = 185,921,660,866.26/433,621.68
  6. Step 6: Final answer
    x = 428,764.68

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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.