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Finding the Fourth Proportional to 602,212.40, 831,053.10 and 333,940.40

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Solution

The fourth proportional to 602,212.40, 831,053.10 and 333,940.40 is: 460,837.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,212.40 : 831,053.10 = 333,940.40 : x
  2. Step 2: Convert to fraction form
    602,212.40/831,053.10 = 333,940.40/x
  3. Step 3: Cross multiply
    602,212.40x = 831,053.10 × 333,940.40
  4. Step 4: Simplify right side
    602,212.40x = 277,522,204,635.24
  5. Step 5: Solve for x
    x = 277,522,204,635.24/602,212.40
  6. Step 6: Final answer
    x = 460,837.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.