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Finding the Fourth Proportional to 568,892.23, 785,063.10 and 310,766.08

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Solution

The fourth proportional to 568,892.23, 785,063.10 and 310,766.08 is: 428,852.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,892.23 : 785,063.10 = 310,766.08 : x
  2. Step 2: Convert to fraction form
    568,892.23/785,063.10 = 310,766.08/x
  3. Step 3: Cross multiply
    568,892.23x = 785,063.10 × 310,766.08
  4. Step 4: Simplify right side
    568,892.23x = 243,970,982,139.65
  5. Step 5: Solve for x
    x = 243,970,982,139.65/568,892.23
  6. Step 6: Final answer
    x = 428,852.72

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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.