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Finding the Fourth Proportional to 343,368.60, 515,052.90 and 325,872.60

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Solution

The fourth proportional to 343,368.60, 515,052.90 and 325,872.60 is: 488,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,368.60 : 515,052.90 = 325,872.60 : x
  2. Step 2: Convert to fraction form
    343,368.60/515,052.90 = 325,872.60/x
  3. Step 3: Cross multiply
    343,368.60x = 515,052.90 × 325,872.60
  4. Step 4: Simplify right side
    343,368.60x = 167,841,627,660.54
  5. Step 5: Solve for x
    x = 167,841,627,660.54/343,368.60
  6. Step 6: Final answer
    x = 488,808.90

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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.