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Finding the Fourth Proportional to 1,792,606.38, 2,473,764.93 and 976,815.78

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Solution

The fourth proportional to 1,792,606.38, 2,473,764.93 and 976,815.78 is: 1,347,988.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792,606.38 : 2,473,764.93 = 976,815.78 : x
  2. Step 2: Convert to fraction form
    1,792,606.38/2,473,764.93 = 976,815.78/x
  3. Step 3: Cross multiply
    1,792,606.38x = 2,473,764.93 × 976,815.78
  4. Step 4: Simplify right side
    1,792,606.38x = 2,416,412,619,634.60
  5. Step 5: Solve for x
    x = 2,416,412,619,634.60/1,792,606.38
  6. Step 6: Final answer
    x = 1,347,988.41

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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.