Home / 515,828.70-773,743.05-141,851.70

Finding the Fourth Proportional to 515,828.70, 773,743.05 and 141,851.70

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Solution

The fourth proportional to 515,828.70, 773,743.05 and 141,851.70 is: 212,777.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,828.70 : 773,743.05 = 141,851.70 : x
  2. Step 2: Convert to fraction form
    515,828.70/773,743.05 = 141,851.70/x
  3. Step 3: Cross multiply
    515,828.70x = 773,743.05 × 141,851.70
  4. Step 4: Simplify right side
    515,828.70x = 109,756,767,005.69
  5. Step 5: Solve for x
    x = 109,756,767,005.69/515,828.70
  6. Step 6: Final answer
    x = 212,777.55

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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.