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Finding the Fourth Proportional to 5,705,644.50, 8,558,964.90 and 1,445,812.89

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Solution

The fourth proportional to 5,705,644.50, 8,558,964.90 and 1,445,812.89 is: 2,168,845.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,705,644.50 : 8,558,964.90 = 1,445,812.89 : x
  2. Step 2: Convert to fraction form
    5,705,644.50/8,558,964.90 = 1,445,812.89/x
  3. Step 3: Cross multiply
    5,705,644.50x = 8,558,964.90 × 1,445,812.89
  4. Step 4: Simplify right side
    5,705,644.50x = 12,374,661,745,381.44
  5. Step 5: Solve for x
    x = 12,374,661,745,381.44/5,705,644.50
  6. Step 6: Final answer
    x = 2,168,845.56

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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.