Home / 515,786.40-773,699.04-141,838.56

Finding the Fourth Proportional to 515,786.40, 773,699.04 and 141,838.56

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Solution

The fourth proportional to 515,786.40, 773,699.04 and 141,838.56 is: 212,763.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,786.40 : 773,699.04 = 141,838.56 : x
  2. Step 2: Convert to fraction form
    515,786.40/773,699.04 = 141,838.56/x
  3. Step 3: Cross multiply
    515,786.40x = 773,699.04 × 141,838.56
  4. Step 4: Simplify right side
    515,786.40x = 109,740,357,706.98
  5. Step 5: Solve for x
    x = 109,740,357,706.98/515,786.40
  6. Step 6: Final answer
    x = 212,763.19

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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.