Home / 1,279,580.63-1,919,365.38-521,252.96

Finding the Fourth Proportional to 1,279,580.63, 1,919,365.38 and 521,252.96

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Solution

The fourth proportional to 1,279,580.63, 1,919,365.38 and 521,252.96 is: 781,877.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,580.63 : 1,919,365.38 = 521,252.96 : x
  2. Step 2: Convert to fraction form
    1,279,580.63/1,919,365.38 = 521,252.96/x
  3. Step 3: Cross multiply
    1,279,580.63x = 1,919,365.38 × 521,252.96
  4. Step 4: Simplify right side
    1,279,580.63x = 1,000,474,876,049.70
  5. Step 5: Solve for x
    x = 1,000,474,876,049.70/1,279,580.63
  6. Step 6: Final answer
    x = 781,877.17

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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.