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Finding the Fourth Proportional to 456,768.55, 630,324.52 and 252,819.87

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Solution

The fourth proportional to 456,768.55, 630,324.52 and 252,819.87 is: 348,882.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,768.55 : 630,324.52 = 252,819.87 : x
  2. Step 2: Convert to fraction form
    456,768.55/630,324.52 = 252,819.87/x
  3. Step 3: Cross multiply
    456,768.55x = 630,324.52 × 252,819.87
  4. Step 4: Simplify right side
    456,768.55x = 159,358,563,204.21
  5. Step 5: Solve for x
    x = 159,358,563,204.21/456,768.55
  6. Step 6: Final answer
    x = 348,882.52

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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.