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Finding the Fourth Proportional to 1,664,946.72, 2,297,626.32 and 901,000.32

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Solution

The fourth proportional to 1,664,946.72, 2,297,626.32 and 901,000.32 is: 1,243,380.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664,946.72 : 2,297,626.32 = 901,000.32 : x
  2. Step 2: Convert to fraction form
    1,664,946.72/2,297,626.32 = 901,000.32/x
  3. Step 3: Cross multiply
    1,664,946.72x = 2,297,626.32 × 901,000.32
  4. Step 4: Simplify right side
    1,664,946.72x = 2,070,162,049,560.42
  5. Step 5: Solve for x
    x = 2,070,162,049,560.42/1,664,946.72
  6. Step 6: Final answer
    x = 1,243,380.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.