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Finding the Fourth Proportional to 673,729.96, 929,722.98 and 371,917.48

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Solution

The fourth proportional to 673,729.96, 929,722.98 and 371,917.48 is: 513,232.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,729.96 : 929,722.98 = 371,917.48 : x
  2. Step 2: Convert to fraction form
    673,729.96/929,722.98 = 371,917.48/x
  3. Step 3: Cross multiply
    673,729.96x = 929,722.98 × 371,917.48
  4. Step 4: Simplify right side
    673,729.96x = 345,780,227,819.69
  5. Step 5: Solve for x
    x = 345,780,227,819.69/673,729.96
  6. Step 6: Final answer
    x = 513,232.67

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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.