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Finding the Fourth Proportional to 5,775,388.16, 7,969,939.20 and 3,197,014.40

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Solution

The fourth proportional to 5,775,388.16, 7,969,939.20 and 3,197,014.40 is: 4,411,826.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775,388.16 : 7,969,939.20 = 3,197,014.40 : x
  2. Step 2: Convert to fraction form
    5,775,388.16/7,969,939.20 = 3,197,014.40/x
  3. Step 3: Cross multiply
    5,775,388.16x = 7,969,939.20 × 3,197,014.40
  4. Step 4: Simplify right side
    5,775,388.16x = 25,480,010,389,524.48
  5. Step 5: Solve for x
    x = 25,480,010,389,524.48/5,775,388.16
  6. Step 6: Final answer
    x = 4,411,826.48

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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.