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Finding the Fourth Proportional to 533,347.60, 800,021.40 and 492,797.20

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Solution

The fourth proportional to 533,347.60, 800,021.40 and 492,797.20 is: 739,195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,347.60 : 800,021.40 = 492,797.20 : x
  2. Step 2: Convert to fraction form
    533,347.60/800,021.40 = 492,797.20/x
  3. Step 3: Cross multiply
    533,347.60x = 800,021.40 × 492,797.20
  4. Step 4: Simplify right side
    533,347.60x = 394,248,305,860.08
  5. Step 5: Solve for x
    x = 394,248,305,860.08/533,347.60
  6. Step 6: Final answer
    x = 739,195.80

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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.