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Finding the Fourth Proportional to 414,000.35, 621,000.53 and 236,853.35

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Solution

The fourth proportional to 414,000.35, 621,000.53 and 236,853.35 is: 355,280.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,000.35 : 621,000.53 = 236,853.35 : x
  2. Step 2: Convert to fraction form
    414,000.35/621,000.53 = 236,853.35/x
  3. Step 3: Cross multiply
    414,000.35x = 621,000.53 × 236,853.35
  4. Step 4: Simplify right side
    414,000.35x = 147,086,054,698.01
  5. Step 5: Solve for x
    x = 147,086,054,698.01/414,000.35
  6. Step 6: Final answer
    x = 355,280.03

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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.