Home / 1,279,402.53-1,919,767.97-521,799.81

Finding the Fourth Proportional to 1,279,402.53, 1,919,767.97 and 521,799.81

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Solution

The fourth proportional to 1,279,402.53, 1,919,767.97 and 521,799.81 is: 782,970.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,402.53 : 1,919,767.97 = 521,799.81 : x
  2. Step 2: Convert to fraction form
    1,279,402.53/1,919,767.97 = 521,799.81/x
  3. Step 3: Cross multiply
    1,279,402.53x = 1,919,767.97 × 521,799.81
  4. Step 4: Simplify right side
    1,279,402.53x = 1,001,734,556,095.46
  5. Step 5: Solve for x
    x = 1,001,734,556,095.46/1,279,402.53
  6. Step 6: Final answer
    x = 782,970.59

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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.