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Finding the Fourth Proportional to 572,208.82, 789,567.42 and 342,712.36

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Solution

The fourth proportional to 572,208.82, 789,567.42 and 342,712.36 is: 472,894.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,208.82 : 789,567.42 = 342,712.36 : x
  2. Step 2: Convert to fraction form
    572,208.82/789,567.42 = 342,712.36/x
  3. Step 3: Cross multiply
    572,208.82x = 789,567.42 × 342,712.36
  4. Step 4: Simplify right side
    572,208.82x = 270,594,513,887.31
  5. Step 5: Solve for x
    x = 270,594,513,887.31/572,208.82
  6. Step 6: Final answer
    x = 472,894.69

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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.