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Finding the Fourth Proportional to 388,256.77, 582,114.95 and 171,998.04

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Solution

The fourth proportional to 388,256.77, 582,114.95 and 171,998.04 is: 257,877.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,256.77 : 582,114.95 = 171,998.04 : x
  2. Step 2: Convert to fraction form
    388,256.77/582,114.95 = 171,998.04/x
  3. Step 3: Cross multiply
    388,256.77x = 582,114.95 × 171,998.04
  4. Step 4: Simplify right side
    388,256.77x = 100,122,630,454.70
  5. Step 5: Solve for x
    x = 100,122,630,454.70/388,256.77
  6. Step 6: Final answer
    x = 257,877.36

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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.