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Finding the Fourth Proportional to 449,956,871.55, 674,322,487.95 and 253,314,078.75

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Solution

The fourth proportional to 449,956,871.55, 674,322,487.95 and 253,314,078.75 is: 379,626,116.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,956,871.55 : 674,322,487.95 = 253,314,078.75 : x
  2. Step 2: Convert to fraction form
    449,956,871.55/674,322,487.95 = 253,314,078.75/x
  3. Step 3: Cross multiply
    449,956,871.55x = 674,322,487.95 × 253,314,078.75
  4. Step 4: Simplify right side
    449,956,871.55x = 170,815,379,811,983,584
  5. Step 5: Solve for x
    x = 170,815,379,811,983,584/449,956,871.55
  6. Step 6: Final answer
    x = 379,626,116.67

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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.