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Finding the Fourth Proportional to 348,545.20, 523,206.60 and 325,703.20

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Solution

The fourth proportional to 348,545.20, 523,206.60 and 325,703.20 is: 488,918.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,545.20 : 523,206.60 = 325,703.20 : x
  2. Step 2: Convert to fraction form
    348,545.20/523,206.60 = 325,703.20/x
  3. Step 3: Cross multiply
    348,545.20x = 523,206.60 × 325,703.20
  4. Step 4: Simplify right side
    348,545.20x = 170,410,063,881.12
  5. Step 5: Solve for x
    x = 170,410,063,881.12/348,545.20
  6. Step 6: Final answer
    x = 488,918.12

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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.