Home / 1,286,801.96-1,930,499.46-445,353.72

Finding the Fourth Proportional to 1,286,801.96, 1,930,499.46 and 445,353.72

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Solution

The fourth proportional to 1,286,801.96, 1,930,499.46 and 445,353.72 is: 668,133.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,801.96 : 1,930,499.46 = 445,353.72 : x
  2. Step 2: Convert to fraction form
    1,286,801.96/1,930,499.46 = 445,353.72/x
  3. Step 3: Cross multiply
    1,286,801.96x = 1,930,499.46 × 445,353.72
  4. Step 4: Simplify right side
    1,286,801.96x = 859,755,115,968.99
  5. Step 5: Solve for x
    x = 859,755,115,968.99/1,286,801.96
  6. Step 6: Final answer
    x = 668,133.20

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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.