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Finding the Fourth Proportional to 641,593.49, 885,596.13 and 369,843.05

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Solution

The fourth proportional to 641,593.49, 885,596.13 and 369,843.05 is: 510,497.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,593.49 : 885,596.13 = 369,843.05 : x
  2. Step 2: Convert to fraction form
    641,593.49/885,596.13 = 369,843.05/x
  3. Step 3: Cross multiply
    641,593.49x = 885,596.13 × 369,843.05
  4. Step 4: Simplify right side
    641,593.49x = 327,531,569,359.42
  5. Step 5: Solve for x
    x = 327,531,569,359.42/641,593.49
  6. Step 6: Final answer
    x = 510,497.03

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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.