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Finding the Fourth Proportional to 348,379.20, 522,957.60 and 325,537.20

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Solution

The fourth proportional to 348,379.20, 522,957.60 and 325,537.20 is: 488,669.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,379.20 : 522,957.60 = 325,537.20 : x
  2. Step 2: Convert to fraction form
    348,379.20/522,957.60 = 325,537.20/x
  3. Step 3: Cross multiply
    348,379.20x = 522,957.60 × 325,537.20
  4. Step 4: Simplify right side
    348,379.20x = 170,242,152,822.72
  5. Step 5: Solve for x
    x = 170,242,152,822.72/348,379.20
  6. Step 6: Final answer
    x = 488,669.11

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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.