Home / 515,947.96-773,973.78-191,822.68

Finding the Fourth Proportional to 515,947.96, 773,973.78 and 191,822.68

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Solution

The fourth proportional to 515,947.96, 773,973.78 and 191,822.68 is: 287,753.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,947.96 : 773,973.78 = 191,822.68 : x
  2. Step 2: Convert to fraction form
    515,947.96/773,973.78 = 191,822.68/x
  3. Step 3: Cross multiply
    515,947.96x = 773,973.78 × 191,822.68
  4. Step 4: Simplify right side
    515,947.96x = 148,465,724,729.33
  5. Step 5: Solve for x
    x = 148,465,724,729.33/515,947.96
  6. Step 6: Final answer
    x = 287,753.29

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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.