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Finding the Fourth Proportional to 773,196, 1,067,012.40 and 451,127.52

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Solution

The fourth proportional to 773,196, 1,067,012.40 and 451,127.52 is: 622,557.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,196 : 1,067,012.40 = 451,127.52 : x
  2. Step 2: Convert to fraction form
    773,196/1,067,012.40 = 451,127.52/x
  3. Step 3: Cross multiply
    773,196x = 1,067,012.40 × 451,127.52
  4. Step 4: Simplify right side
    773,196x = 481,358,657,821.25
  5. Step 5: Solve for x
    x = 481,358,657,821.25/773,196
  6. Step 6: Final answer
    x = 622,557.10

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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.