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Finding the Fourth Proportional to 568,071.90, 784,008.67 and 326,354.03

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Solution

The fourth proportional to 568,071.90, 784,008.67 and 326,354.03 is: 450,408.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,071.90 : 784,008.67 = 326,354.03 : x
  2. Step 2: Convert to fraction form
    568,071.90/784,008.67 = 326,354.03/x
  3. Step 3: Cross multiply
    568,071.90x = 784,008.67 × 326,354.03
  4. Step 4: Simplify right side
    568,071.90x = 255,864,387,825.46
  5. Step 5: Solve for x
    x = 255,864,387,825.46/568,071.90
  6. Step 6: Final answer
    x = 450,408.46

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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.