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Finding the Fourth Proportional to 400,057.60, 552,153.36 and 256,996.48

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Solution

The fourth proportional to 400,057.60, 552,153.36 and 256,996.48 is: 354,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,057.60 : 552,153.36 = 256,996.48 : x
  2. Step 2: Convert to fraction form
    400,057.60/552,153.36 = 256,996.48/x
  3. Step 3: Cross multiply
    400,057.60x = 552,153.36 × 256,996.48
  4. Step 4: Simplify right side
    400,057.60x = 141,901,469,940.17
  5. Step 5: Solve for x
    x = 141,901,469,940.17/400,057.60
  6. Step 6: Final answer
    x = 354,702.60

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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.