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Finding the Fourth Proportional to 556,176.92, 833,993.21 and 387,777.92

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Solution

The fourth proportional to 556,176.92, 833,993.21 and 387,777.92 is: 581,477.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,176.92 : 833,993.21 = 387,777.92 : x
  2. Step 2: Convert to fraction form
    556,176.92/833,993.21 = 387,777.92/x
  3. Step 3: Cross multiply
    556,176.92x = 833,993.21 × 387,777.92
  4. Step 4: Simplify right side
    556,176.92x = 323,404,149,067.40
  5. Step 5: Solve for x
    x = 323,404,149,067.40/556,176.92
  6. Step 6: Final answer
    x = 581,477.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.