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Finding the Fourth Proportional to 414,154.10, 621,231.15 and 366,914.90

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Solution

The fourth proportional to 414,154.10, 621,231.15 and 366,914.90 is: 550,372.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,154.10 : 621,231.15 = 366,914.90 : x
  2. Step 2: Convert to fraction form
    414,154.10/621,231.15 = 366,914.90/x
  3. Step 3: Cross multiply
    414,154.10x = 621,231.15 × 366,914.90
  4. Step 4: Simplify right side
    414,154.10x = 227,938,965,279.14
  5. Step 5: Solve for x
    x = 227,938,965,279.14/414,154.10
  6. Step 6: Final answer
    x = 550,372.35

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Double scale
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Similar ratio
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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.