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Finding the Fourth Proportional to 1,986,967.40, 2,979,554.42 and 566,685.88

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Solution

The fourth proportional to 1,986,967.40, 2,979,554.42 and 566,685.88 is: 849,773.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,967.40 : 2,979,554.42 = 566,685.88 : x
  2. Step 2: Convert to fraction form
    1,986,967.40/2,979,554.42 = 566,685.88/x
  3. Step 3: Cross multiply
    1,986,967.40x = 2,979,554.42 × 566,685.88
  4. Step 4: Simplify right side
    1,986,967.40x = 1,688,471,418,505.59
  5. Step 5: Solve for x
    x = 1,688,471,418,505.59/1,986,967.40
  6. Step 6: Final answer
    x = 849,773.09

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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.