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Finding the Fourth Proportional to 482,792.94, 666,100.28 and 278,816.92

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Solution

The fourth proportional to 482,792.94, 666,100.28 and 278,816.92 is: 384,678.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,792.94 : 666,100.28 = 278,816.92 : x
  2. Step 2: Convert to fraction form
    482,792.94/666,100.28 = 278,816.92/x
  3. Step 3: Cross multiply
    482,792.94x = 666,100.28 × 278,816.92
  4. Step 4: Simplify right side
    482,792.94x = 185,720,027,512.53
  5. Step 5: Solve for x
    x = 185,720,027,512.53/482,792.94
  6. Step 6: Final answer
    x = 384,678.42

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1.5x scale

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.