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Finding the Fourth Proportional to 6,489,119.88, 9,733,712.64 and 1,696,819.68

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Solution

The fourth proportional to 6,489,119.88, 9,733,712.64 and 1,696,819.68 is: 2,545,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,489,119.88 : 9,733,712.64 = 1,696,819.68 : x
  2. Step 2: Convert to fraction form
    6,489,119.88/9,733,712.64 = 1,696,819.68/x
  3. Step 3: Cross multiply
    6,489,119.88x = 9,733,712.64 × 1,696,819.68
  4. Step 4: Simplify right side
    6,489,119.88x = 16,516,355,167,016.76
  5. Step 5: Solve for x
    x = 16,516,355,167,016.76/6,489,119.88
  6. Step 6: Final answer
    x = 2,545,238.10

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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.