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Finding the Fourth Proportional to 382,861.69, 528,349.13 and 213,092.17

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Solution

The fourth proportional to 382,861.69, 528,349.13 and 213,092.17 is: 294,067.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,861.69 : 528,349.13 = 213,092.17 : x
  2. Step 2: Convert to fraction form
    382,861.69/528,349.13 = 213,092.17/x
  3. Step 3: Cross multiply
    382,861.69x = 528,349.13 × 213,092.17
  4. Step 4: Simplify right side
    382,861.69x = 112,587,061,042.07
  5. Step 5: Solve for x
    x = 112,587,061,042.07/382,861.69
  6. Step 6: Final answer
    x = 294,067.19

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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.