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Finding the Fourth Proportional to 1,948,558.68, 2,922,772.41 and 686,353.50

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Solution

The fourth proportional to 1,948,558.68, 2,922,772.41 and 686,353.50 is: 1,029,507.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948,558.68 : 2,922,772.41 = 686,353.50 : x
  2. Step 2: Convert to fraction form
    1,948,558.68/2,922,772.41 = 686,353.50/x
  3. Step 3: Cross multiply
    1,948,558.68x = 2,922,772.41 × 686,353.50
  4. Step 4: Simplify right side
    1,948,558.68x = 2,006,055,073,306.94
  5. Step 5: Solve for x
    x = 2,006,055,073,306.94/1,948,558.68
  6. Step 6: Final answer
    x = 1,029,507.14

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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.