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Finding the Fourth Proportional to 554,578.05, 831,783.81 and 175,449.51

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Solution

The fourth proportional to 554,578.05, 831,783.81 and 175,449.51 is: 263,147.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,578.05 : 831,783.81 = 175,449.51 : x
  2. Step 2: Convert to fraction form
    554,578.05/831,783.81 = 175,449.51/x
  3. Step 3: Cross multiply
    554,578.05x = 831,783.81 × 175,449.51
  4. Step 4: Simplify right side
    554,578.05x = 145,936,061,890.43
  5. Step 5: Solve for x
    x = 145,936,061,890.43/554,578.05
  6. Step 6: Final answer
    x = 263,147.92

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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.