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Finding the Fourth Proportional to 1,696,824.36, 2,341,607.78 and 961,917.32

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Solution

The fourth proportional to 1,696,824.36, 2,341,607.78 and 961,917.32 is: 1,327,440.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696,824.36 : 2,341,607.78 = 961,917.32 : x
  2. Step 2: Convert to fraction form
    1,696,824.36/2,341,607.78 = 961,917.32/x
  3. Step 3: Cross multiply
    1,696,824.36x = 2,341,607.78 × 961,917.32
  4. Step 4: Simplify right side
    1,696,824.36x = 2,252,433,088,487.56
  5. Step 5: Solve for x
    x = 2,252,433,088,487.56/1,696,824.36
  6. Step 6: Final answer
    x = 1,327,440.33

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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.