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Finding the Fourth Proportional to 4,667,328, 7,000,992 and 1,121,472

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Solution

The fourth proportional to 4,667,328, 7,000,992 and 1,121,472 is: 1,682,208

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,667,328 : 7,000,992 = 1,121,472 : x
  2. Step 2: Convert to fraction form
    4,667,328/7,000,992 = 1,121,472/x
  3. Step 3: Cross multiply
    4,667,328x = 7,000,992 × 1,121,472
  4. Step 4: Simplify right side
    4,667,328x = 7,851,416,500,224
  5. Step 5: Solve for x
    x = 7,851,416,500,224/4,667,328
  6. Step 6: Final answer
    x = 1,682,208

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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.