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Finding the Fourth Proportional to 572,714.82, 859,074.57 and 193,637.61

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Solution

The fourth proportional to 572,714.82, 859,074.57 and 193,637.61 is: 290,457.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,714.82 : 859,074.57 = 193,637.61 : x
  2. Step 2: Convert to fraction form
    572,714.82/859,074.57 = 193,637.61/x
  3. Step 3: Cross multiply
    572,714.82x = 859,074.57 × 193,637.61
  4. Step 4: Simplify right side
    572,714.82x = 166,349,146,546.58
  5. Step 5: Solve for x
    x = 166,349,146,546.58/572,714.82
  6. Step 6: Final answer
    x = 290,457.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.