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Finding the Fourth Proportional to 400,562.40, 600,428.28 and 250,458.11

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Solution

The fourth proportional to 400,562.40, 600,428.28 and 250,458.11 is: 375,427.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,562.40 : 600,428.28 = 250,458.11 : x
  2. Step 2: Convert to fraction form
    400,562.40/600,428.28 = 250,458.11/x
  3. Step 3: Cross multiply
    400,562.40x = 600,428.28 × 250,458.11
  4. Step 4: Simplify right side
    400,562.40x = 150,382,129,197.21
  5. Step 5: Solve for x
    x = 150,382,129,197.21/400,562.40
  6. Step 6: Final answer
    x = 375,427.47

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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.