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Finding the Fourth Proportional to 463,245.74, 639,188.22 and 291,063.94

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Solution

The fourth proportional to 463,245.74, 639,188.22 and 291,063.94 is: 401,611.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,245.74 : 639,188.22 = 291,063.94 : x
  2. Step 2: Convert to fraction form
    463,245.74/639,188.22 = 291,063.94/x
  3. Step 3: Cross multiply
    463,245.74x = 639,188.22 × 291,063.94
  4. Step 4: Simplify right side
    463,245.74x = 186,044,641,714.79
  5. Step 5: Solve for x
    x = 186,044,641,714.79/463,245.74
  6. Step 6: Final answer
    x = 401,611.12

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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.