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Finding the Fourth Proportional to 527,648.46, 728,168.18 and 323,811.96

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Solution

The fourth proportional to 527,648.46, 728,168.18 and 323,811.96 is: 446,868.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,648.46 : 728,168.18 = 323,811.96 : x
  2. Step 2: Convert to fraction form
    527,648.46/728,168.18 = 323,811.96/x
  3. Step 3: Cross multiply
    527,648.46x = 728,168.18 × 323,811.96
  4. Step 4: Simplify right side
    527,648.46x = 235,789,563,956.37
  5. Step 5: Solve for x
    x = 235,789,563,956.37/527,648.46
  6. Step 6: Final answer
    x = 446,868.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.