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Finding the Fourth Proportional to 707,843.95, 976,839.64 and 385,553.27

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Solution

The fourth proportional to 707,843.95, 976,839.64 and 385,553.27 is: 532,071.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,843.95 : 976,839.64 = 385,553.27 : x
  2. Step 2: Convert to fraction form
    707,843.95/976,839.64 = 385,553.27/x
  3. Step 3: Cross multiply
    707,843.95x = 976,839.64 × 385,553.27
  4. Step 4: Simplify right side
    707,843.95x = 376,623,718,945.84
  5. Step 5: Solve for x
    x = 376,623,718,945.84/707,843.95
  6. Step 6: Final answer
    x = 532,071.68

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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.