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Finding the Fourth Proportional to 1,719,863.64, 2,579,787.36 and 440,468.64

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Solution

The fourth proportional to 1,719,863.64, 2,579,787.36 and 440,468.64 is: 660,700.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719,863.64 : 2,579,787.36 = 440,468.64 : x
  2. Step 2: Convert to fraction form
    1,719,863.64/2,579,787.36 = 440,468.64/x
  3. Step 3: Cross multiply
    1,719,863.64x = 2,579,787.36 × 440,468.64
  4. Step 4: Simplify right side
    1,719,863.64x = 1,136,315,429,948.39
  5. Step 5: Solve for x
    x = 1,136,315,429,948.39/1,719,863.64
  6. Step 6: Final answer
    x = 660,700.89

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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.