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Finding the Fourth Proportional to 545,172.69, 817,791.84 and 171,195.69

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Solution

The fourth proportional to 545,172.69, 817,791.84 and 171,195.69 is: 256,803.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,172.69 : 817,791.84 = 171,195.69 : x
  2. Step 2: Convert to fraction form
    545,172.69/817,791.84 = 171,195.69/x
  3. Step 3: Cross multiply
    545,172.69x = 817,791.84 × 171,195.69
  4. Step 4: Simplify right side
    545,172.69x = 140,002,438,325.17
  5. Step 5: Solve for x
    x = 140,002,438,325.17/545,172.69
  6. Step 6: Final answer
    x = 256,803.84

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1.5x scale

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.