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Finding the Fourth Proportional to 316,153.38, 436,092.18 and 220,625.22

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Solution

The fourth proportional to 316,153.38, 436,092.18 and 220,625.22 is: 304,323.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,153.38 : 436,092.18 = 220,625.22 : x
  2. Step 2: Convert to fraction form
    316,153.38/436,092.18 = 220,625.22/x
  3. Step 3: Cross multiply
    316,153.38x = 436,092.18 × 220,625.22
  4. Step 4: Simplify right side
    316,153.38x = 96,212,933,152.78
  5. Step 5: Solve for x
    x = 96,212,933,152.78/316,153.38
  6. Step 6: Final answer
    x = 304,323.59

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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.