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Finding the Fourth Proportional to 528,342.44, 792,020.61 and 208,496.97

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Solution

The fourth proportional to 528,342.44, 792,020.61 and 208,496.97 is: 312,550.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,342.44 : 792,020.61 = 208,496.97 : x
  2. Step 2: Convert to fraction form
    528,342.44/792,020.61 = 208,496.97/x
  3. Step 3: Cross multiply
    528,342.44x = 792,020.61 × 208,496.97
  4. Step 4: Simplify right side
    528,342.44x = 165,133,897,362.55
  5. Step 5: Solve for x
    x = 165,133,897,362.55/528,342.44
  6. Step 6: Final answer
    x = 312,550.89

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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.