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Finding the Fourth Proportional to 517,450.30, 776,175.45 and 251,729.80

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Solution

The fourth proportional to 517,450.30, 776,175.45 and 251,729.80 is: 377,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,450.30 : 776,175.45 = 251,729.80 : x
  2. Step 2: Convert to fraction form
    517,450.30/776,175.45 = 251,729.80/x
  3. Step 3: Cross multiply
    517,450.30x = 776,175.45 × 251,729.80
  4. Step 4: Simplify right side
    517,450.30x = 195,386,490,793.41
  5. Step 5: Solve for x
    x = 195,386,490,793.41/517,450.30
  6. Step 6: Final answer
    x = 377,594.70

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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.