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Finding the Fourth Proportional to 2,986,644.13, 4,479,584.88 and 964,677.98

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Solution

The fourth proportional to 2,986,644.13, 4,479,584.88 and 964,677.98 is: 1,446,893.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986,644.13 : 4,479,584.88 = 964,677.98 : x
  2. Step 2: Convert to fraction form
    2,986,644.13/4,479,584.88 = 964,677.98/x
  3. Step 3: Cross multiply
    2,986,644.13x = 4,479,584.88 × 964,677.98
  4. Step 4: Simplify right side
    2,986,644.13x = 4,321,356,893,276.94
  5. Step 5: Solve for x
    x = 4,321,356,893,276.94/2,986,644.13
  6. Step 6: Final answer
    x = 1,446,893.81

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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.