Home / 451,945.60-677,788.80-136,326.40

Finding the Fourth Proportional to 451,945.60, 677,788.80 and 136,326.40

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Solution

The fourth proportional to 451,945.60, 677,788.80 and 136,326.40 is: 204,450.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,945.60 : 677,788.80 = 136,326.40 : x
  2. Step 2: Convert to fraction form
    451,945.60/677,788.80 = 136,326.40/x
  3. Step 3: Cross multiply
    451,945.60x = 677,788.80 × 136,326.40
  4. Step 4: Simplify right side
    451,945.60x = 92,400,507,064.32
  5. Step 5: Solve for x
    x = 92,400,507,064.32/451,945.60
  6. Step 6: Final answer
    x = 204,450.51

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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.