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Finding the Fourth Proportional to 1,976,680.56, 2,965,260.76 and 556,736.64

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Solution

The fourth proportional to 1,976,680.56, 2,965,260.76 and 556,736.64 is: 835,172.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976,680.56 : 2,965,260.76 = 556,736.64 : x
  2. Step 2: Convert to fraction form
    1,976,680.56/2,965,260.76 = 556,736.64/x
  3. Step 3: Cross multiply
    1,976,680.56x = 2,965,260.76 × 556,736.64
  4. Step 4: Simplify right side
    1,976,680.56x = 1,650,869,312,246.25
  5. Step 5: Solve for x
    x = 1,650,869,312,246.25/1,976,680.56
  6. Step 6: Final answer
    x = 835,172.53

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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.