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Finding the Fourth Proportional to 3,739,920.40, 5,616,101.40 and 2,058,230.80

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Solution

The fourth proportional to 3,739,920.40, 5,616,101.40 and 2,058,230.80 is: 3,090,769.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739,920.40 : 5,616,101.40 = 2,058,230.80 : x
  2. Step 2: Convert to fraction form
    3,739,920.40/5,616,101.40 = 2,058,230.80/x
  3. Step 3: Cross multiply
    3,739,920.40x = 5,616,101.40 × 2,058,230.80
  4. Step 4: Simplify right side
    3,739,920.40x = 11,559,232,877,403.12
  5. Step 5: Solve for x
    x = 11,559,232,877,403.12/3,739,920.40
  6. Step 6: Final answer
    x = 3,090,769.76

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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.