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Finding the Fourth Proportional to 5,676,805.71, 8,516,564.33 and 1,890,321.39

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Solution

The fourth proportional to 5,676,805.71, 8,516,564.33 and 1,890,321.39 is: 2,835,933.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676,805.71 : 8,516,564.33 = 1,890,321.39 : x
  2. Step 2: Convert to fraction form
    5,676,805.71/8,516,564.33 = 1,890,321.39/x
  3. Step 3: Cross multiply
    5,676,805.71x = 8,516,564.33 × 1,890,321.39
  4. Step 4: Simplify right side
    5,676,805.71x = 16,099,043,712,858.41
  5. Step 5: Solve for x
    x = 16,099,043,712,858.41/5,676,805.71
  6. Step 6: Final answer
    x = 2,835,933.54

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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.