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Finding the Fourth Proportional to 348,755.28, 481,428.54 and 235,731.12

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Solution

The fourth proportional to 348,755.28, 481,428.54 and 235,731.12 is: 325,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,755.28 : 481,428.54 = 235,731.12 : x
  2. Step 2: Convert to fraction form
    348,755.28/481,428.54 = 235,731.12/x
  3. Step 3: Cross multiply
    348,755.28x = 481,428.54 × 235,731.12
  4. Step 4: Simplify right side
    348,755.28x = 113,487,688,934.17
  5. Step 5: Solve for x
    x = 113,487,688,934.17/348,755.28
  6. Step 6: Final answer
    x = 325,407.80

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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.