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Finding the Fourth Proportional to 578,337.16, 798,155.22 and 323,684.68

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Solution

The fourth proportional to 578,337.16, 798,155.22 and 323,684.68 is: 446,712.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,337.16 : 798,155.22 = 323,684.68 : x
  2. Step 2: Convert to fraction form
    578,337.16/798,155.22 = 323,684.68/x
  3. Step 3: Cross multiply
    578,337.16x = 798,155.22 × 323,684.68
  4. Step 4: Simplify right side
    578,337.16x = 258,350,616,976.03
  5. Step 5: Solve for x
    x = 258,350,616,976.03/578,337.16
  6. Step 6: Final answer
    x = 446,712.81

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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.