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Finding the Fourth Proportional to 414,445.50, 621,668.25 and 133,962.75

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Solution

The fourth proportional to 414,445.50, 621,668.25 and 133,962.75 is: 200,944.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,445.50 : 621,668.25 = 133,962.75 : x
  2. Step 2: Convert to fraction form
    414,445.50/621,668.25 = 133,962.75/x
  3. Step 3: Cross multiply
    414,445.50x = 621,668.25 × 133,962.75
  4. Step 4: Simplify right side
    414,445.50x = 83,280,388,357.69
  5. Step 5: Solve for x
    x = 83,280,388,357.69/414,445.50
  6. Step 6: Final answer
    x = 200,944.13

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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.