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Finding the Fourth Proportional to 1,664,912.52, 2,297,579.28 and 900,966.08

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Solution

The fourth proportional to 1,664,912.52, 2,297,579.28 and 900,966.08 is: 1,243,333.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664,912.52 : 2,297,579.28 = 900,966.08 : x
  2. Step 2: Convert to fraction form
    1,664,912.52/2,297,579.28 = 900,966.08/x
  3. Step 3: Cross multiply
    1,664,912.52x = 2,297,579.28 × 900,966.08
  4. Step 4: Simplify right side
    1,664,912.52x = 2,070,040,997,390.82
  5. Step 5: Solve for x
    x = 2,070,040,997,390.82/1,664,912.52
  6. Step 6: Final answer
    x = 1,243,333.19

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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.