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Finding the Fourth Proportional to 412,800.30, 619,200.45 and 176,604.30

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Solution

The fourth proportional to 412,800.30, 619,200.45 and 176,604.30 is: 264,906.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,800.30 : 619,200.45 = 176,604.30 : x
  2. Step 2: Convert to fraction form
    412,800.30/619,200.45 = 176,604.30/x
  3. Step 3: Cross multiply
    412,800.30x = 619,200.45 × 176,604.30
  4. Step 4: Simplify right side
    412,800.30x = 109,353,462,031.94
  5. Step 5: Solve for x
    x = 109,353,462,031.94/412,800.30
  6. Step 6: Final answer
    x = 264,906.45

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Similar ratio
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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.