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Finding the Fourth Proportional to 4,932,203.60, 7,392,775.80 and 2,091,832.40

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Solution

The fourth proportional to 4,932,203.60, 7,392,775.80 and 2,091,832.40 is: 3,135,403.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,932,203.60 : 7,392,775.80 = 2,091,832.40 : x
  2. Step 2: Convert to fraction form
    4,932,203.60/7,392,775.80 = 2,091,832.40/x
  3. Step 3: Cross multiply
    4,932,203.60x = 7,392,775.80 × 2,091,832.40
  4. Step 4: Simplify right side
    4,932,203.60x = 15,464,447,944,375.92
  5. Step 5: Solve for x
    x = 15,464,447,944,375.92/4,932,203.60
  6. Step 6: Final answer
    x = 3,135,403.40

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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.