Home / 554,539.92-831,809.96-133,815.80

Finding the Fourth Proportional to 554,539.92, 831,809.96 and 133,815.80

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Solution

The fourth proportional to 554,539.92, 831,809.96 and 133,815.80 is: 200,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,539.92 : 831,809.96 = 133,815.80 : x
  2. Step 2: Convert to fraction form
    554,539.92/831,809.96 = 133,815.80/x
  3. Step 3: Cross multiply
    554,539.92x = 831,809.96 × 133,815.80
  4. Step 4: Simplify right side
    554,539.92x = 111,309,312,478.69
  5. Step 5: Solve for x
    x = 111,309,312,478.69/554,539.92
  6. Step 6: Final answer
    x = 200,723.71

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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.