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Finding the Fourth Proportional to 456,813.11, 630,394.46 and 252,859.66

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Solution

The fourth proportional to 456,813.11, 630,394.46 and 252,859.66 is: 348,942.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,813.11 : 630,394.46 = 252,859.66 : x
  2. Step 2: Convert to fraction form
    456,813.11/630,394.46 = 252,859.66/x
  3. Step 3: Cross multiply
    456,813.11x = 630,394.46 × 252,859.66
  4. Step 4: Simplify right side
    456,813.11x = 159,401,324,405.21
  5. Step 5: Solve for x
    x = 159,401,324,405.21/456,813.11
  6. Step 6: Final answer
    x = 348,942.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.