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Finding the Fourth Proportional to 384,153.80, 576,886.80 and 251,621.60

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Solution

The fourth proportional to 384,153.80, 576,886.80 and 251,621.60 is: 377,862.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,153.80 : 576,886.80 = 251,621.60 : x
  2. Step 2: Convert to fraction form
    384,153.80/576,886.80 = 251,621.60/x
  3. Step 3: Cross multiply
    384,153.80x = 576,886.80 × 251,621.60
  4. Step 4: Simplify right side
    384,153.80x = 145,157,179,634.88
  5. Step 5: Solve for x
    x = 145,157,179,634.88/384,153.80
  6. Step 6: Final answer
    x = 377,862.15

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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.