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Finding the Fourth Proportional to 400,618.75, 600,064.21 and 377,064.76

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Solution

The fourth proportional to 400,618.75, 600,064.21 and 377,064.76 is: 564,784.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,618.75 : 600,064.21 = 377,064.76 : x
  2. Step 2: Convert to fraction form
    400,618.75/600,064.21 = 377,064.76/x
  3. Step 3: Cross multiply
    400,618.75x = 600,064.21 × 377,064.76
  4. Step 4: Simplify right side
    400,618.75x = 226,263,067,328.24
  5. Step 5: Solve for x
    x = 226,263,067,328.24/400,618.75
  6. Step 6: Final answer
    x = 564,784.02

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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.