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Finding the Fourth Proportional to 554,399.31, 831,701.54 and 175,415.44

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Solution

The fourth proportional to 554,399.31, 831,701.54 and 175,415.44 is: 263,155.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,399.31 : 831,701.54 = 175,415.44 : x
  2. Step 2: Convert to fraction form
    554,399.31/831,701.54 = 175,415.44/x
  3. Step 3: Cross multiply
    554,399.31x = 831,701.54 × 175,415.44
  4. Step 4: Simplify right side
    554,399.31x = 145,893,291,587.78
  5. Step 5: Solve for x
    x = 145,893,291,587.78/554,399.31
  6. Step 6: Final answer
    x = 263,155.62

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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.