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Finding the Fourth Proportional to 3,375,728.33, 5,063,592.69 and 816,943.50

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Solution

The fourth proportional to 3,375,728.33, 5,063,592.69 and 816,943.50 is: 1,225,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375,728.33 : 5,063,592.69 = 816,943.50 : x
  2. Step 2: Convert to fraction form
    3,375,728.33/5,063,592.69 = 816,943.50/x
  3. Step 3: Cross multiply
    3,375,728.33x = 5,063,592.69 × 816,943.50
  4. Step 4: Simplify right side
    3,375,728.33x = 4,136,669,134,743.02
  5. Step 5: Solve for x
    x = 4,136,669,134,743.02/3,375,728.33
  6. Step 6: Final answer
    x = 1,225,415.30

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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.