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Finding the Fourth Proportional to 414,737.19, 621,109.35 and 236,704.50

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Solution

The fourth proportional to 414,737.19, 621,109.35 and 236,704.50 is: 354,488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,737.19 : 621,109.35 = 236,704.50 : x
  2. Step 2: Convert to fraction form
    414,737.19/621,109.35 = 236,704.50/x
  3. Step 3: Cross multiply
    414,737.19x = 621,109.35 × 236,704.50
  4. Step 4: Simplify right side
    414,737.19x = 147,019,378,137.08
  5. Step 5: Solve for x
    x = 147,019,378,137.08/414,737.19
  6. Step 6: Final answer
    x = 354,488.05

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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.