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Finding the Fourth Proportional to 5,157,455.70, 7,736,183.55 and 1,563,042.90

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Solution

The fourth proportional to 5,157,455.70, 7,736,183.55 and 1,563,042.90 is: 2,344,564.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157,455.70 : 7,736,183.55 = 1,563,042.90 : x
  2. Step 2: Convert to fraction form
    5,157,455.70/7,736,183.55 = 1,563,042.90/x
  3. Step 3: Cross multiply
    5,157,455.70x = 7,736,183.55 × 1,563,042.90
  4. Step 4: Simplify right side
    5,157,455.70x = 12,091,986,770,924.29
  5. Step 5: Solve for x
    x = 12,091,986,770,924.29/5,157,455.70
  6. Step 6: Final answer
    x = 2,344,564.35

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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.