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Finding the Fourth Proportional to 3,739,906.40, 5,616,080.40 and 2,058,216.80

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Solution

The fourth proportional to 3,739,906.40, 5,616,080.40 and 2,058,216.80 is: 3,090,748.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739,906.40 : 5,616,080.40 = 2,058,216.80 : x
  2. Step 2: Convert to fraction form
    3,739,906.40/5,616,080.40 = 2,058,216.80/x
  3. Step 3: Cross multiply
    3,739,906.40x = 5,616,080.40 × 2,058,216.80
  4. Step 4: Simplify right side
    3,739,906.40x = 11,559,111,029,430.72
  5. Step 5: Solve for x
    x = 11,559,111,029,430.72/3,739,906.40
  6. Step 6: Final answer
    x = 3,090,748.75

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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.