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Finding the Fourth Proportional to 352,066.20, 528,099.30 and 219,355.80

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Solution

The fourth proportional to 352,066.20, 528,099.30 and 219,355.80 is: 329,033.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,066.20 : 528,099.30 = 219,355.80 : x
  2. Step 2: Convert to fraction form
    352,066.20/528,099.30 = 219,355.80/x
  3. Step 3: Cross multiply
    352,066.20x = 528,099.30 × 219,355.80
  4. Step 4: Simplify right side
    352,066.20x = 115,841,644,430.94
  5. Step 5: Solve for x
    x = 115,841,644,430.94/352,066.20
  6. Step 6: Final answer
    x = 329,033.70

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1.5x scale

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.