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Finding the Fourth Proportional to 266,791.80, 400,058.10 and 148,337.40

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Solution

The fourth proportional to 266,791.80, 400,058.10 and 148,337.40 is: 222,434.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,791.80 : 400,058.10 = 148,337.40 : x
  2. Step 2: Convert to fraction form
    266,791.80/400,058.10 = 148,337.40/x
  3. Step 3: Cross multiply
    266,791.80x = 400,058.10 × 148,337.40
  4. Step 4: Simplify right side
    266,791.80x = 59,343,578,402.94
  5. Step 5: Solve for x
    x = 59,343,578,402.94/266,791.80
  6. Step 6: Final answer
    x = 222,434.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.