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Finding the Fourth Proportional to 339,621.40, 476,169.80 and 339,621.40

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Solution

The fourth proportional to 339,621.40, 476,169.80 and 339,621.40 is: 476,169.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,621.40 : 476,169.80 = 339,621.40 : x
  2. Step 2: Convert to fraction form
    339,621.40/476,169.80 = 339,621.40/x
  3. Step 3: Cross multiply
    339,621.40x = 476,169.80 × 339,621.40
  4. Step 4: Simplify right side
    339,621.40x = 161,717,454,113.72
  5. Step 5: Solve for x
    x = 161,717,454,113.72/339,621.40
  6. Step 6: Final answer
    x = 476,169.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.