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Finding the Fourth Proportional to 348,478.47, 481,047.39 and 235,454.31

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Solution

The fourth proportional to 348,478.47, 481,047.39 and 235,454.31 is: 325,026.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,478.47 : 481,047.39 = 235,454.31 : x
  2. Step 2: Convert to fraction form
    348,478.47/481,047.39 = 235,454.31/x
  3. Step 3: Cross multiply
    348,478.47x = 481,047.39 × 235,454.31
  4. Step 4: Simplify right side
    348,478.47x = 113,264,681,289.75
  5. Step 5: Solve for x
    x = 113,264,681,289.75/348,478.47
  6. Step 6: Final answer
    x = 325,026.34

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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.