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Finding the Fourth Proportional to 567,903.60, 851,855.40 and 408,471.30

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Solution

The fourth proportional to 567,903.60, 851,855.40 and 408,471.30 is: 612,706.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,903.60 : 851,855.40 = 408,471.30 : x
  2. Step 2: Convert to fraction form
    567,903.60/851,855.40 = 408,471.30/x
  3. Step 3: Cross multiply
    567,903.60x = 851,855.40 × 408,471.30
  4. Step 4: Simplify right side
    567,903.60x = 347,958,482,650.02
  5. Step 5: Solve for x
    x = 347,958,482,650.02/567,903.60
  6. Step 6: Final answer
    x = 612,706.95

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Double scale
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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.