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Finding the Fourth Proportional to 4,909,186.92, 7,364,939.49 and 1,543,393.92

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Solution

The fourth proportional to 4,909,186.92, 7,364,939.49 and 1,543,393.92 is: 2,315,455.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909,186.92 : 7,364,939.49 = 1,543,393.92 : x
  2. Step 2: Convert to fraction form
    4,909,186.92/7,364,939.49 = 1,543,393.92/x
  3. Step 3: Cross multiply
    4,909,186.92x = 7,364,939.49 × 1,543,393.92
  4. Step 4: Simplify right side
    4,909,186.92x = 11,367,002,830,033.90
  5. Step 5: Solve for x
    x = 11,367,002,830,033.90/4,909,186.92
  6. Step 6: Final answer
    x = 2,315,455.29

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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.