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Finding the Fourth Proportional to 884,709.76, 1,327,064.64 and 219,861.76

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Solution

The fourth proportional to 884,709.76, 1,327,064.64 and 219,861.76 is: 329,792.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,709.76 : 1,327,064.64 = 219,861.76 : x
  2. Step 2: Convert to fraction form
    884,709.76/1,327,064.64 = 219,861.76/x
  3. Step 3: Cross multiply
    884,709.76x = 1,327,064.64 × 219,861.76
  4. Step 4: Simplify right side
    884,709.76x = 291,770,767,384.17
  5. Step 5: Solve for x
    x = 291,770,767,384.17/884,709.76
  6. Step 6: Final answer
    x = 329,792.64

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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.