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Finding the Fourth Proportional to 572,201.82, 789,601.77 and 357,329.07

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Solution

The fourth proportional to 572,201.82, 789,601.77 and 357,329.07 is: 493,091.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,201.82 : 789,601.77 = 357,329.07 : x
  2. Step 2: Convert to fraction form
    572,201.82/789,601.77 = 357,329.07/x
  3. Step 3: Cross multiply
    572,201.82x = 789,601.77 × 357,329.07
  4. Step 4: Simplify right side
    572,201.82x = 282,147,666,144.45
  5. Step 5: Solve for x
    x = 282,147,666,144.45/572,201.82
  6. Step 6: Final answer
    x = 493,091.17

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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.