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Finding the Fourth Proportional to 297,857.54, 411,047.57 and 161,891.45

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Solution

The fourth proportional to 297,857.54, 411,047.57 and 161,891.45 is: 223,412.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,857.54 : 411,047.57 = 161,891.45 : x
  2. Step 2: Convert to fraction form
    297,857.54/411,047.57 = 161,891.45/x
  3. Step 3: Cross multiply
    297,857.54x = 411,047.57 × 161,891.45
  4. Step 4: Simplify right side
    297,857.54x = 66,545,084,261.58
  5. Step 5: Solve for x
    x = 66,545,084,261.58/297,857.54
  6. Step 6: Final answer
    x = 223,412.46

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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.