Home / 554,121.40-831,182.10-199,171.30

Finding the Fourth Proportional to 554,121.40, 831,182.10 and 199,171.30

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Solution

The fourth proportional to 554,121.40, 831,182.10 and 199,171.30 is: 298,756.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,121.40 : 831,182.10 = 199,171.30 : x
  2. Step 2: Convert to fraction form
    554,121.40/831,182.10 = 199,171.30/x
  3. Step 3: Cross multiply
    554,121.40x = 831,182.10 × 199,171.30
  4. Step 4: Simplify right side
    554,121.40x = 165,547,619,393.73
  5. Step 5: Solve for x
    x = 165,547,619,393.73/554,121.40
  6. Step 6: Final answer
    x = 298,756.95

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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.