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Finding the Fourth Proportional to 353,990.60, 531,600.30 and 188,102.60

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Solution

The fourth proportional to 353,990.60, 531,600.30 and 188,102.60 is: 282,480.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,990.60 : 531,600.30 = 188,102.60 : x
  2. Step 2: Convert to fraction form
    353,990.60/531,600.30 = 188,102.60/x
  3. Step 3: Cross multiply
    353,990.60x = 531,600.30 × 188,102.60
  4. Step 4: Simplify right side
    353,990.60x = 99,995,398,590.78
  5. Step 5: Solve for x
    x = 99,995,398,590.78/353,990.60
  6. Step 6: Final answer
    x = 282,480.38

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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.