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Finding the Fourth Proportional to 452,915.80, 679,373.70 and 303,616.60

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Solution

The fourth proportional to 452,915.80, 679,373.70 and 303,616.60 is: 455,424.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,915.80 : 679,373.70 = 303,616.60 : x
  2. Step 2: Convert to fraction form
    452,915.80/679,373.70 = 303,616.60/x
  3. Step 3: Cross multiply
    452,915.80x = 679,373.70 × 303,616.60
  4. Step 4: Simplify right side
    452,915.80x = 206,269,132,923.42
  5. Step 5: Solve for x
    x = 206,269,132,923.42/452,915.80
  6. Step 6: Final answer
    x = 455,424.90

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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.