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Finding the Fourth Proportional to 568,476.91, 784,493.32 and 313,822.63

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Solution

The fourth proportional to 568,476.91, 784,493.32 and 313,822.63 is: 433,072.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,476.91 : 784,493.32 = 313,822.63 : x
  2. Step 2: Convert to fraction form
    568,476.91/784,493.32 = 313,822.63/x
  3. Step 3: Cross multiply
    568,476.91x = 784,493.32 × 313,822.63
  4. Step 4: Simplify right side
    568,476.91x = 246,191,756,899.83
  5. Step 5: Solve for x
    x = 246,191,756,899.83/568,476.91
  6. Step 6: Final answer
    x = 433,072.57

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1.5x scale

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.