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Finding the Fourth Proportional to 567,872.80, 851,809.20 and 318,522.40

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Solution

The fourth proportional to 567,872.80, 851,809.20 and 318,522.40 is: 477,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,872.80 : 851,809.20 = 318,522.40 : x
  2. Step 2: Convert to fraction form
    567,872.80/851,809.20 = 318,522.40/x
  3. Step 3: Cross multiply
    567,872.80x = 851,809.20 × 318,522.40
  4. Step 4: Simplify right side
    567,872.80x = 271,320,310,726.08
  5. Step 5: Solve for x
    x = 271,320,310,726.08/567,872.80
  6. Step 6: Final answer
    x = 477,783.60

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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.