Home / 1,965,981.98-2,711,657.61-1,312,278.41

Finding the Fourth Proportional to 1,965,981.98, 2,711,657.61 and 1,312,278.41

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Solution

The fourth proportional to 1,965,981.98, 2,711,657.61 and 1,312,278.41 is: 1,810,011.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,981.98 : 2,711,657.61 = 1,312,278.41 : x
  2. Step 2: Convert to fraction form
    1,965,981.98/2,711,657.61 = 1,312,278.41/x
  3. Step 3: Cross multiply
    1,965,981.98x = 2,711,657.61 × 1,312,278.41
  4. Step 4: Simplify right side
    1,965,981.98x = 3,558,449,728,604.58
  5. Step 5: Solve for x
    x = 3,558,449,728,604.58/1,965,981.98
  6. Step 6: Final answer
    x = 1,810,011.37

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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.