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Finding the Fourth Proportional to 5,430,891.70, 8,147,431.05 and 1,592,706.70

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Solution

The fourth proportional to 5,430,891.70, 8,147,431.05 and 1,592,706.70 is: 2,389,380.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430,891.70 : 8,147,431.05 = 1,592,706.70 : x
  2. Step 2: Convert to fraction form
    5,430,891.70/8,147,431.05 = 1,592,706.70/x
  3. Step 3: Cross multiply
    5,430,891.70x = 8,147,431.05 × 1,592,706.70
  4. Step 4: Simplify right side
    5,430,891.70x = 12,976,468,021,123.04
  5. Step 5: Solve for x
    x = 12,976,468,021,123.04/5,430,891.70
  6. Step 6: Final answer
    x = 2,389,380.74

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.