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Finding the Fourth Proportional to 530,674.84, 796,010.46 and 215,131

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Solution

The fourth proportional to 530,674.84, 796,010.46 and 215,131 is: 322,695.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,674.84 : 796,010.46 = 215,131 : x
  2. Step 2: Convert to fraction form
    530,674.84/796,010.46 = 215,131/x
  3. Step 3: Cross multiply
    530,674.84x = 796,010.46 × 215,131
  4. Step 4: Simplify right side
    530,674.84x = 171,246,526,270.26
  5. Step 5: Solve for x
    x = 171,246,526,270.26/530,674.84
  6. Step 6: Final answer
    x = 322,695.77

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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.