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Finding the Fourth Proportional to 577,290.50, 796,658.90 and 322,641.69

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Solution

The fourth proportional to 577,290.50, 796,658.90 and 322,641.69 is: 445,244.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,290.50 : 796,658.90 = 322,641.69 : x
  2. Step 2: Convert to fraction form
    577,290.50/796,658.90 = 322,641.69/x
  3. Step 3: Cross multiply
    577,290.50x = 796,658.90 × 322,641.69
  4. Step 4: Simplify right side
    577,290.50x = 257,035,372,396.90
  5. Step 5: Solve for x
    x = 257,035,372,396.90/577,290.50
  6. Step 6: Final answer
    x = 445,244.42

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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.