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Finding the Fourth Proportional to 266,058.20, 399,281.70 and 187,326.20

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Solution

The fourth proportional to 266,058.20, 399,281.70 and 187,326.20 is: 281,126.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,058.20 : 399,281.70 = 187,326.20 : x
  2. Step 2: Convert to fraction form
    266,058.20/399,281.70 = 187,326.20/x
  3. Step 3: Cross multiply
    266,058.20x = 399,281.70 × 187,326.20
  4. Step 4: Simplify right side
    266,058.20x = 74,795,923,590.54
  5. Step 5: Solve for x
    x = 74,795,923,590.54/266,058.20
  6. Step 6: Final answer
    x = 281,126.17

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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.