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Finding the Fourth Proportional to 352,550.60, 528,048.30 and 212,064.20

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Solution

The fourth proportional to 352,550.60, 528,048.30 and 212,064.20 is: 317,628.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,550.60 : 528,048.30 = 212,064.20 : x
  2. Step 2: Convert to fraction form
    352,550.60/528,048.30 = 212,064.20/x
  3. Step 3: Cross multiply
    352,550.60x = 528,048.30 × 212,064.20
  4. Step 4: Simplify right side
    352,550.60x = 111,980,140,300.86
  5. Step 5: Solve for x
    x = 111,980,140,300.86/352,550.60
  6. Step 6: Final answer
    x = 317,628.56

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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.