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Finding the Fourth Proportional to 464,338.20, 640,793.80 and 270,740.56

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Solution

The fourth proportional to 464,338.20, 640,793.80 and 270,740.56 is: 373,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,338.20 : 640,793.80 = 270,740.56 : x
  2. Step 2: Convert to fraction form
    464,338.20/640,793.80 = 270,740.56/x
  3. Step 3: Cross multiply
    464,338.20x = 640,793.80 × 270,740.56
  4. Step 4: Simplify right side
    464,338.20x = 173,488,872,256.53
  5. Step 5: Solve for x
    x = 173,488,872,256.53/464,338.20
  6. Step 6: Final answer
    x = 373,626.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.