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Finding the Fourth Proportional to 433,331.80, 650,381.70 and 255,616.60

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Solution

The fourth proportional to 433,331.80, 650,381.70 and 255,616.60 is: 383,651.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,331.80 : 650,381.70 = 255,616.60 : x
  2. Step 2: Convert to fraction form
    433,331.80/650,381.70 = 255,616.60/x
  3. Step 3: Cross multiply
    433,331.80x = 650,381.70 × 255,616.60
  4. Step 4: Simplify right side
    433,331.80x = 166,248,358,856.22
  5. Step 5: Solve for x
    x = 166,248,358,856.22/433,331.80
  6. Step 6: Final answer
    x = 383,651.42

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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.