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Finding the Fourth Proportional to 463,261.43, 639,311.60 and 259,307.28

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Solution

The fourth proportional to 463,261.43, 639,311.60 and 259,307.28 is: 357,850.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,261.43 : 639,311.60 = 259,307.28 : x
  2. Step 2: Convert to fraction form
    463,261.43/639,311.60 = 259,307.28/x
  3. Step 3: Cross multiply
    463,261.43x = 639,311.60 × 259,307.28
  4. Step 4: Simplify right side
    463,261.43x = 165,778,152,716.72
  5. Step 5: Solve for x
    x = 165,778,152,716.72/463,261.43
  6. Step 6: Final answer
    x = 357,850.11

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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.