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Finding the Fourth Proportional to 545,825.20, 818,737.80 and 171,799.60

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Solution

The fourth proportional to 545,825.20, 818,737.80 and 171,799.60 is: 257,699.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,825.20 : 818,737.80 = 171,799.60 : x
  2. Step 2: Convert to fraction form
    545,825.20/818,737.80 = 171,799.60/x
  3. Step 3: Cross multiply
    545,825.20x = 818,737.80 × 171,799.60
  4. Step 4: Simplify right side
    545,825.20x = 140,658,826,544.88
  5. Step 5: Solve for x
    x = 140,658,826,544.88/545,825.20
  6. Step 6: Final answer
    x = 257,699.40

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Similar ratio
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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.