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Finding the Fourth Proportional to 382,562.30, 528,037.35 and 269,435.90

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Solution

The fourth proportional to 382,562.30, 528,037.35 and 269,435.90 is: 371,892.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,562.30 : 528,037.35 = 269,435.90 : x
  2. Step 2: Convert to fraction form
    382,562.30/528,037.35 = 269,435.90/x
  3. Step 3: Cross multiply
    382,562.30x = 528,037.35 × 269,435.90
  4. Step 4: Simplify right side
    382,562.30x = 142,272,218,630.87
  5. Step 5: Solve for x
    x = 142,272,218,630.87/382,562.30
  6. Step 6: Final answer
    x = 371,892.94

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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.