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Finding the Fourth Proportional to 1,249,679.95, 1,724,621.12 and 733,456.22

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Solution

The fourth proportional to 1,249,679.95, 1,724,621.12 and 733,456.22 is: 1,012,206.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,679.95 : 1,724,621.12 = 733,456.22 : x
  2. Step 2: Convert to fraction form
    1,249,679.95/1,724,621.12 = 733,456.22/x
  3. Step 3: Cross multiply
    1,249,679.95x = 1,724,621.12 × 733,456.22
  4. Step 4: Simplify right side
    1,249,679.95x = 1,264,934,078,067.44
  5. Step 5: Solve for x
    x = 1,264,934,078,067.44/1,249,679.95
  6. Step 6: Final answer
    x = 1,012,206.43

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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.