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Finding the Fourth Proportional to 463,407.57, 639,512.16 and 262,203.57

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Solution

The fourth proportional to 463,407.57, 639,512.16 and 262,203.57 is: 361,846.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,407.57 : 639,512.16 = 262,203.57 : x
  2. Step 2: Convert to fraction form
    463,407.57/639,512.16 = 262,203.57/x
  3. Step 3: Cross multiply
    463,407.57x = 639,512.16 × 262,203.57
  4. Step 4: Simplify right side
    463,407.57x = 167,682,371,410.41
  5. Step 5: Solve for x
    x = 167,682,371,410.41/463,407.57
  6. Step 6: Final answer
    x = 361,846.42

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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.