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Finding the Fourth Proportional to 1,325,618.28, 1,829,352.60 and 722,006.28

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Solution

The fourth proportional to 1,325,618.28, 1,829,352.60 and 722,006.28 is: 996,368.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,618.28 : 1,829,352.60 = 722,006.28 : x
  2. Step 2: Convert to fraction form
    1,325,618.28/1,829,352.60 = 722,006.28/x
  3. Step 3: Cross multiply
    1,325,618.28x = 1,829,352.60 × 722,006.28
  4. Step 4: Simplify right side
    1,325,618.28x = 1,320,804,065,534.33
  5. Step 5: Solve for x
    x = 1,320,804,065,534.33/1,325,618.28
  6. Step 6: Final answer
    x = 996,368.33

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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.