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Finding the Fourth Proportional to 621,627.33, 932,798.45 and 261,769.78

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Solution

The fourth proportional to 621,627.33, 932,798.45 and 261,769.78 is: 392,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,627.33 : 932,798.45 = 261,769.78 : x
  2. Step 2: Convert to fraction form
    621,627.33/932,798.45 = 261,769.78/x
  3. Step 3: Cross multiply
    621,627.33x = 932,798.45 × 261,769.78
  4. Step 4: Simplify right side
    621,627.33x = 244,178,445,040.84
  5. Step 5: Solve for x
    x = 244,178,445,040.84/621,627.33
  6. Step 6: Final answer
    x = 392,805.20

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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.