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Finding the Fourth Proportional to 1,976,904.67, 2,965,422.31 and 680,044.04

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Solution

The fourth proportional to 1,976,904.67, 2,965,422.31 and 680,044.04 is: 1,020,088.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976,904.67 : 2,965,422.31 = 680,044.04 : x
  2. Step 2: Convert to fraction form
    1,976,904.67/2,965,422.31 = 680,044.04/x
  3. Step 3: Cross multiply
    1,976,904.67x = 2,965,422.31 × 680,044.04
  4. Step 4: Simplify right side
    1,976,904.67x = 2,016,617,764,598.31
  5. Step 5: Solve for x
    x = 2,016,617,764,598.31/1,976,904.67
  6. Step 6: Final answer
    x = 1,020,088.53

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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.