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Finding the Fourth Proportional to 3,865,275.92, 5,797,907.54 and 986,642.30

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Solution

The fourth proportional to 3,865,275.92, 5,797,907.54 and 986,642.30 is: 1,479,961.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865,275.92 : 5,797,907.54 = 986,642.30 : x
  2. Step 2: Convert to fraction form
    3,865,275.92/5,797,907.54 = 986,642.30/x
  3. Step 3: Cross multiply
    3,865,275.92x = 5,797,907.54 × 986,642.30
  4. Step 4: Simplify right side
    3,865,275.92x = 5,720,460,843,714.41
  5. Step 5: Solve for x
    x = 5,720,460,843,714.41/3,865,275.92
  6. Step 6: Final answer
    x = 1,479,961.83

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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.