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Finding the Fourth Proportional to 722,297.24, 996,936.09 and 480,590

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Solution

The fourth proportional to 722,297.24, 996,936.09 and 480,590 is: 663,324.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,297.24 : 996,936.09 = 480,590 : x
  2. Step 2: Convert to fraction form
    722,297.24/996,936.09 = 480,590/x
  3. Step 3: Cross multiply
    722,297.24x = 996,936.09 × 480,590
  4. Step 4: Simplify right side
    722,297.24x = 479,117,515,493.10
  5. Step 5: Solve for x
    x = 479,117,515,493.10/722,297.24
  6. Step 6: Final answer
    x = 663,324.58

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1.5x scale

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.