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Finding the Fourth Proportional to 554,499.23, 831,391.14 and 217,573.91

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Solution

The fourth proportional to 554,499.23, 831,391.14 and 217,573.91 is: 326,220.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,499.23 : 831,391.14 = 217,573.91 : x
  2. Step 2: Convert to fraction form
    554,499.23/831,391.14 = 217,573.91/x
  3. Step 3: Cross multiply
    554,499.23x = 831,391.14 × 217,573.91
  4. Step 4: Simplify right side
    554,499.23x = 180,889,025,522.40
  5. Step 5: Solve for x
    x = 180,889,025,522.40/554,499.23
  6. Step 6: Final answer
    x = 326,220.52

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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.