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Finding the Fourth Proportional to 568,688.25, 785,045.21 and 375,209.83

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Solution

The fourth proportional to 568,688.25, 785,045.21 and 375,209.83 is: 517,958.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,688.25 : 785,045.21 = 375,209.83 : x
  2. Step 2: Convert to fraction form
    568,688.25/785,045.21 = 375,209.83/x
  3. Step 3: Cross multiply
    568,688.25x = 785,045.21 × 375,209.83
  4. Step 4: Simplify right side
    568,688.25x = 294,556,679,786.41
  5. Step 5: Solve for x
    x = 294,556,679,786.41/568,688.25
  6. Step 6: Final answer
    x = 517,958.09

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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.