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Finding the Fourth Proportional to 5,645,978.79, 8,464,207.37 and 2,448,696.87

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Solution

The fourth proportional to 5,645,978.79, 8,464,207.37 and 2,448,696.87 is: 3,670,980.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645,978.79 : 8,464,207.37 = 2,448,696.87 : x
  2. Step 2: Convert to fraction form
    5,645,978.79/8,464,207.37 = 2,448,696.87/x
  3. Step 3: Cross multiply
    5,645,978.79x = 8,464,207.37 × 2,448,696.87
  4. Step 4: Simplify right side
    5,645,978.79x = 20,726,278,081,706.45
  5. Step 5: Solve for x
    x = 20,726,278,081,706.45/5,645,978.79
  6. Step 6: Final answer
    x = 3,670,980.51

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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.