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Finding the Fourth Proportional to 347,595, 479,681.10 and 188,619

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Solution

The fourth proportional to 347,595, 479,681.10 and 188,619 is: 260,294.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,595 : 479,681.10 = 188,619 : x
  2. Step 2: Convert to fraction form
    347,595/479,681.10 = 188,619/x
  3. Step 3: Cross multiply
    347,595x = 479,681.10 × 188,619
  4. Step 4: Simplify right side
    347,595x = 90,476,969,400.90
  5. Step 5: Solve for x
    x = 90,476,969,400.90/347,595
  6. Step 6: Final answer
    x = 260,294.22

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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.