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Finding the Fourth Proportional to 568,368.97, 784,349.25 and 313,720.22

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Solution

The fourth proportional to 568,368.97, 784,349.25 and 313,720.22 is: 432,933.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,368.97 : 784,349.25 = 313,720.22 : x
  2. Step 2: Convert to fraction form
    568,368.97/784,349.25 = 313,720.22/x
  3. Step 3: Cross multiply
    568,368.97x = 784,349.25 × 313,720.22
  4. Step 4: Simplify right side
    568,368.97x = 246,066,219,266.84
  5. Step 5: Solve for x
    x = 246,066,219,266.84/568,368.97
  6. Step 6: Final answer
    x = 432,933.94

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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.