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Finding the Fourth Proportional to 433,339.80, 650,393.70 and 255,624.60

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Solution

The fourth proportional to 433,339.80, 650,393.70 and 255,624.60 is: 383,663.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,339.80 : 650,393.70 = 255,624.60 : x
  2. Step 2: Convert to fraction form
    433,339.80/650,393.70 = 255,624.60/x
  3. Step 3: Cross multiply
    433,339.80x = 650,393.70 × 255,624.60
  4. Step 4: Simplify right side
    433,339.80x = 166,256,629,405.02
  5. Step 5: Solve for x
    x = 166,256,629,405.02/433,339.80
  6. Step 6: Final answer
    x = 383,663.42

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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.