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Finding the Fourth Proportional to 292,608.20, 438,912.30 and 194,112.20

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Solution

The fourth proportional to 292,608.20, 438,912.30 and 194,112.20 is: 291,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,608.20 : 438,912.30 = 194,112.20 : x
  2. Step 2: Convert to fraction form
    292,608.20/438,912.30 = 194,112.20/x
  3. Step 3: Cross multiply
    292,608.20x = 438,912.30 × 194,112.20
  4. Step 4: Simplify right side
    292,608.20x = 85,198,232,160.06
  5. Step 5: Solve for x
    x = 85,198,232,160.06/292,608.20
  6. Step 6: Final answer
    x = 291,168.30

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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.