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Finding the Fourth Proportional to 476,063.30, 656,967.30 and 272,118.58

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Solution

The fourth proportional to 476,063.30, 656,967.30 and 272,118.58 is: 375,523.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,063.30 : 656,967.30 = 272,118.58 : x
  2. Step 2: Convert to fraction form
    476,063.30/656,967.30 = 272,118.58/x
  3. Step 3: Cross multiply
    476,063.30x = 656,967.30 × 272,118.58
  4. Step 4: Simplify right side
    476,063.30x = 178,773,008,782.43
  5. Step 5: Solve for x
    x = 178,773,008,782.43/476,063.30
  6. Step 6: Final answer
    x = 375,523.61

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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.