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Finding the Fourth Proportional to 568,089.80, 784,248 and 353,299.06

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Solution

The fourth proportional to 568,089.80, 784,248 and 353,299.06 is: 487,729.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,089.80 : 784,248 = 353,299.06 : x
  2. Step 2: Convert to fraction form
    568,089.80/784,248 = 353,299.06/x
  3. Step 3: Cross multiply
    568,089.80x = 784,248 × 353,299.06
  4. Step 4: Simplify right side
    568,089.80x = 277,074,079,246.26
  5. Step 5: Solve for x
    x = 277,074,079,246.26/568,089.80
  6. Step 6: Final answer
    x = 487,729.37

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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.