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Finding the Fourth Proportional to 6,697,978.68, 9,242,929.40 and 3,797,564.70

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Solution

The fourth proportional to 6,697,978.68, 9,242,929.40 and 3,797,564.70 is: 5,240,479.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,697,978.68 : 9,242,929.40 = 3,797,564.70 : x
  2. Step 2: Convert to fraction form
    6,697,978.68/9,242,929.40 = 3,797,564.70/x
  3. Step 3: Cross multiply
    6,697,978.68x = 9,242,929.40 × 3,797,564.70
  4. Step 4: Simplify right side
    6,697,978.68x = 35,100,622,414,032.18
  5. Step 5: Solve for x
    x = 35,100,622,414,032.18/6,697,978.68
  6. Step 6: Final answer
    x = 5,240,479.87

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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.