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Finding the Fourth Proportional to 1,928,283.04, 2,661,158.68 and 1,068,879.52

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Solution

The fourth proportional to 1,928,283.04, 2,661,158.68 and 1,068,879.52 is: 1,475,124.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,283.04 : 2,661,158.68 = 1,068,879.52 : x
  2. Step 2: Convert to fraction form
    1,928,283.04/2,661,158.68 = 1,068,879.52/x
  3. Step 3: Cross multiply
    1,928,283.04x = 2,661,158.68 × 1,068,879.52
  4. Step 4: Simplify right side
    1,928,283.04x = 2,844,458,012,522.23
  5. Step 5: Solve for x
    x = 2,844,458,012,522.23/1,928,283.04
  6. Step 6: Final answer
    x = 1,475,124.74

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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.