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Finding the Fourth Proportional to 1,778,718.96, 2,454,629.13 and 962,922.33

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Solution

The fourth proportional to 1,778,718.96, 2,454,629.13 and 962,922.33 is: 1,328,831.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,718.96 : 2,454,629.13 = 962,922.33 : x
  2. Step 2: Convert to fraction form
    1,778,718.96/2,454,629.13 = 962,922.33/x
  3. Step 3: Cross multiply
    1,778,718.96x = 2,454,629.13 × 962,922.33
  4. Step 4: Simplify right side
    1,778,718.96x = 2,363,617,201,145.47
  5. Step 5: Solve for x
    x = 2,363,617,201,145.47/1,778,718.96
  6. Step 6: Final answer
    x = 1,328,831.17

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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.