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Finding the Fourth Proportional to 569,816.80, 854,725.20 and 320,466.40

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Solution

The fourth proportional to 569,816.80, 854,725.20 and 320,466.40 is: 480,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,816.80 : 854,725.20 = 320,466.40 : x
  2. Step 2: Convert to fraction form
    569,816.80/854,725.20 = 320,466.40/x
  3. Step 3: Cross multiply
    569,816.80x = 854,725.20 × 320,466.40
  4. Step 4: Simplify right side
    569,816.80x = 273,910,707,833.28
  5. Step 5: Solve for x
    x = 273,910,707,833.28/569,816.80
  6. Step 6: Final answer
    x = 480,699.60

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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.