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Finding the Fourth Proportional to 288,608.55, 432,912.83 and 164,192.55

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Solution

The fourth proportional to 288,608.55, 432,912.83 and 164,192.55 is: 246,288.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,608.55 : 432,912.83 = 164,192.55 : x
  2. Step 2: Convert to fraction form
    288,608.55/432,912.83 = 164,192.55/x
  3. Step 3: Cross multiply
    288,608.55x = 432,912.83 × 164,192.55
  4. Step 4: Simplify right side
    288,608.55x = 71,081,060,664.45
  5. Step 5: Solve for x
    x = 71,081,060,664.45/288,608.55
  6. Step 6: Final answer
    x = 246,288.83

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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.