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Finding the Fourth Proportional to 3,788,524.71, 5,679,244.13 and 1,391,725.80

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Solution

The fourth proportional to 3,788,524.71, 5,679,244.13 and 1,391,725.80 is: 2,086,287.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788,524.71 : 5,679,244.13 = 1,391,725.80 : x
  2. Step 2: Convert to fraction form
    3,788,524.71/5,679,244.13 = 1,391,725.80/x
  3. Step 3: Cross multiply
    3,788,524.71x = 5,679,244.13 × 1,391,725.80
  4. Step 4: Simplify right side
    3,788,524.71x = 7,903,950,573,260.93
  5. Step 5: Solve for x
    x = 7,903,950,573,260.93/3,788,524.71
  6. Step 6: Final answer
    x = 2,086,287.19

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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.