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Finding the Fourth Proportional to 560,664.32, 773,716.50 and 306,015.48

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Solution

The fourth proportional to 560,664.32, 773,716.50 and 306,015.48 is: 422,301.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,664.32 : 773,716.50 = 306,015.48 : x
  2. Step 2: Convert to fraction form
    560,664.32/773,716.50 = 306,015.48/x
  3. Step 3: Cross multiply
    560,664.32x = 773,716.50 × 306,015.48
  4. Step 4: Simplify right side
    560,664.32x = 236,769,226,131.42
  5. Step 5: Solve for x
    x = 236,769,226,131.42/560,664.32
  6. Step 6: Final answer
    x = 422,301.22

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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.