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Finding the Fourth Proportional to 382,699.44, 528,198.36 and 253,409.88

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Solution

The fourth proportional to 382,699.44, 528,198.36 and 253,409.88 is: 349,754.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,699.44 : 528,198.36 = 253,409.88 : x
  2. Step 2: Convert to fraction form
    382,699.44/528,198.36 = 253,409.88/x
  3. Step 3: Cross multiply
    382,699.44x = 528,198.36 × 253,409.88
  4. Step 4: Simplify right side
    382,699.44x = 133,850,683,023.80
  5. Step 5: Solve for x
    x = 133,850,683,023.80/382,699.44
  6. Step 6: Final answer
    x = 349,754.06

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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.