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Finding the Fourth Proportional to 560,665.32, 773,717.88 and 306,016.48

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Solution

The fourth proportional to 560,665.32, 773,717.88 and 306,016.48 is: 422,302.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,665.32 : 773,717.88 = 306,016.48 : x
  2. Step 2: Convert to fraction form
    560,665.32/773,717.88 = 306,016.48/x
  3. Step 3: Cross multiply
    560,665.32x = 773,717.88 × 306,016.48
  4. Step 4: Simplify right side
    560,665.32x = 236,770,422,150.66
  5. Step 5: Solve for x
    x = 236,770,422,150.66/560,665.32
  6. Step 6: Final answer
    x = 422,302.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.