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Finding the Fourth Proportional to 6,493,644.68, 8,964,833.46 and 3,915,978.44

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Solution

The fourth proportional to 6,493,644.68, 8,964,833.46 and 3,915,978.44 is: 5,406,223.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,493,644.68 : 8,964,833.46 = 3,915,978.44 : x
  2. Step 2: Convert to fraction form
    6,493,644.68/8,964,833.46 = 3,915,978.44/x
  3. Step 3: Cross multiply
    6,493,644.68x = 8,964,833.46 × 3,915,978.44
  4. Step 4: Simplify right side
    6,493,644.68x = 35,106,094,547,550.61
  5. Step 5: Solve for x
    x = 35,106,094,547,550.61/6,493,644.68
  6. Step 6: Final answer
    x = 5,406,223.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.