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Finding the Fourth Proportional to 353,305.56, 528,733.62 and 338,608.92

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Solution

The fourth proportional to 353,305.56, 528,733.62 and 338,608.92 is: 506,739.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,305.56 : 528,733.62 = 338,608.92 : x
  2. Step 2: Convert to fraction form
    353,305.56/528,733.62 = 338,608.92/x
  3. Step 3: Cross multiply
    353,305.56x = 528,733.62 × 338,608.92
  4. Step 4: Simplify right side
    353,305.56x = 179,033,920,035.89
  5. Step 5: Solve for x
    x = 179,033,920,035.89/353,305.56
  6. Step 6: Final answer
    x = 506,739.61

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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.