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Finding the Fourth Proportional to 1,894,846.64, 2,614,895.16 and 1,035,406.88

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Solution

The fourth proportional to 1,894,846.64, 2,614,895.16 and 1,035,406.88 is: 1,428,865.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894,846.64 : 2,614,895.16 = 1,035,406.88 : x
  2. Step 2: Convert to fraction form
    1,894,846.64/2,614,895.16 = 1,035,406.88/x
  3. Step 3: Cross multiply
    1,894,846.64x = 2,614,895.16 × 1,035,406.88
  4. Step 4: Simplify right side
    1,894,846.64x = 2,707,480,439,142.70
  5. Step 5: Solve for x
    x = 2,707,480,439,142.70/1,894,846.64
  6. Step 6: Final answer
    x = 1,428,865.21

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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.