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Finding the Fourth Proportional to 543,325.40, 814,988.10 and 494,336.60

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Solution

The fourth proportional to 543,325.40, 814,988.10 and 494,336.60 is: 741,504.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,325.40 : 814,988.10 = 494,336.60 : x
  2. Step 2: Convert to fraction form
    543,325.40/814,988.10 = 494,336.60/x
  3. Step 3: Cross multiply
    543,325.40x = 814,988.10 × 494,336.60
  4. Step 4: Simplify right side
    543,325.40x = 402,878,446,394.46
  5. Step 5: Solve for x
    x = 402,878,446,394.46/543,325.40
  6. Step 6: Final answer
    x = 741,504.90

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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.