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Finding the Fourth Proportional to 560,727.15, 773,776.44 and 318,986.97

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Solution

The fourth proportional to 560,727.15, 773,776.44 and 318,986.97 is: 440,186.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,727.15 : 773,776.44 = 318,986.97 : x
  2. Step 2: Convert to fraction form
    560,727.15/773,776.44 = 318,986.97/x
  3. Step 3: Cross multiply
    560,727.15x = 773,776.44 × 318,986.97
  4. Step 4: Simplify right side
    560,727.15x = 246,824,602,052.99
  5. Step 5: Solve for x
    x = 246,824,602,052.99/560,727.15
  6. Step 6: Final answer
    x = 440,186.64

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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.