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Finding the Fourth Proportional to 382,792.86, 528,461.28 and 268,422.48

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Solution

The fourth proportional to 382,792.86, 528,461.28 and 268,422.48 is: 370,568.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,792.86 : 528,461.28 = 268,422.48 : x
  2. Step 2: Convert to fraction form
    382,792.86/528,461.28 = 268,422.48/x
  3. Step 3: Cross multiply
    382,792.86x = 528,461.28 × 268,422.48
  4. Step 4: Simplify right side
    382,792.86x = 141,850,887,361.57
  5. Step 5: Solve for x
    x = 141,850,887,361.57/382,792.86
  6. Step 6: Final answer
    x = 370,568.27

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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.