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Finding the Fourth Proportional to 348,387.20, 522,969.60 and 325,545.20

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Solution

The fourth proportional to 348,387.20, 522,969.60 and 325,545.20 is: 488,681.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,387.20 : 522,969.60 = 325,545.20 : x
  2. Step 2: Convert to fraction form
    348,387.20/522,969.60 = 325,545.20/x
  3. Step 3: Cross multiply
    348,387.20x = 522,969.60 × 325,545.20
  4. Step 4: Simplify right side
    348,387.20x = 170,250,243,025.92
  5. Step 5: Solve for x
    x = 170,250,243,025.92/348,387.20
  6. Step 6: Final answer
    x = 488,681.11

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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.