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Finding the Fourth Proportional to 393,492.60, 591,551.10 and 335,755.80

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Solution

The fourth proportional to 393,492.60, 591,551.10 and 335,755.80 is: 504,753.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,492.60 : 591,551.10 = 335,755.80 : x
  2. Step 2: Convert to fraction form
    393,492.60/591,551.10 = 335,755.80/x
  3. Step 3: Cross multiply
    393,492.60x = 591,551.10 × 335,755.80
  4. Step 4: Simplify right side
    393,492.60x = 198,616,712,821.38
  5. Step 5: Solve for x
    x = 198,616,712,821.38/393,492.60
  6. Step 6: Final answer
    x = 504,753.36

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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.