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Finding the Fourth Proportional to 414,751.06, 621,129.97 and 236,718.33

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Solution

The fourth proportional to 414,751.06, 621,129.97 and 236,718.33 is: 354,508.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,751.06 : 621,129.97 = 236,718.33 : x
  2. Step 2: Convert to fraction form
    414,751.06/621,129.97 = 236,718.33/x
  3. Step 3: Cross multiply
    414,751.06x = 621,129.97 × 236,718.33
  4. Step 4: Simplify right side
    414,751.06x = 147,032,849,211.35
  5. Step 5: Solve for x
    x = 147,032,849,211.35/414,751.06
  6. Step 6: Final answer
    x = 354,508.68

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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.