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Finding the Fourth Proportional to 352,772.50, 485,935.88 and 284,598.58

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Solution

The fourth proportional to 352,772.50, 485,935.88 and 284,598.58 is: 392,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,772.50 : 485,935.88 = 284,598.58 : x
  2. Step 2: Convert to fraction form
    352,772.50/485,935.88 = 284,598.58/x
  3. Step 3: Cross multiply
    352,772.50x = 485,935.88 × 284,598.58
  4. Step 4: Simplify right side
    352,772.50x = 138,296,659,996.06
  5. Step 5: Solve for x
    x = 138,296,659,996.06/352,772.50
  6. Step 6: Final answer
    x = 392,027.90

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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.