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Finding the Fourth Proportional to 452,914.80, 679,372.20 and 303,615.60

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Solution

The fourth proportional to 452,914.80, 679,372.20 and 303,615.60 is: 455,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,914.80 : 679,372.20 = 303,615.60 : x
  2. Step 2: Convert to fraction form
    452,914.80/679,372.20 = 303,615.60/x
  3. Step 3: Cross multiply
    452,914.80x = 679,372.20 × 303,615.60
  4. Step 4: Simplify right side
    452,914.80x = 206,267,998,126.32
  5. Step 5: Solve for x
    x = 206,267,998,126.32/452,914.80
  6. Step 6: Final answer
    x = 455,423.40

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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.