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Finding the Fourth Proportional to 1,792,785.24, 2,473,971.65 and 976,971.55

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Solution

The fourth proportional to 1,792,785.24, 2,473,971.65 and 976,971.55 is: 1,348,181.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792,785.24 : 2,473,971.65 = 976,971.55 : x
  2. Step 2: Convert to fraction form
    1,792,785.24/2,473,971.65 = 976,971.55/x
  3. Step 3: Cross multiply
    1,792,785.24x = 2,473,971.65 × 976,971.55
  4. Step 4: Simplify right side
    1,792,785.24x = 2,416,999,917,556.56
  5. Step 5: Solve for x
    x = 2,416,999,917,556.56/1,792,785.24
  6. Step 6: Final answer
    x = 1,348,181.51

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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.