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Finding the Fourth Proportional to 474,815.80, 712,223.70 and 159,196.60

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Solution

The fourth proportional to 474,815.80, 712,223.70 and 159,196.60 is: 238,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,815.80 : 712,223.70 = 159,196.60 : x
  2. Step 2: Convert to fraction form
    474,815.80/712,223.70 = 159,196.60/x
  3. Step 3: Cross multiply
    474,815.80x = 712,223.70 × 159,196.60
  4. Step 4: Simplify right side
    474,815.80x = 113,383,591,479.42
  5. Step 5: Solve for x
    x = 113,383,591,479.42/474,815.80
  6. Step 6: Final answer
    x = 238,794.90

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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.