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Finding the Fourth Proportional to 339,620.40, 476,168.40 and 339,620.40

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Solution

The fourth proportional to 339,620.40, 476,168.40 and 339,620.40 is: 476,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,620.40 : 476,168.40 = 339,620.40 : x
  2. Step 2: Convert to fraction form
    339,620.40/476,168.40 = 339,620.40/x
  3. Step 3: Cross multiply
    339,620.40x = 476,168.40 × 339,620.40
  4. Step 4: Simplify right side
    339,620.40x = 161,716,502,475.36
  5. Step 5: Solve for x
    x = 161,716,502,475.36/339,620.40
  6. Step 6: Final answer
    x = 476,168.40

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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.