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Finding the Fourth Proportional to 562,834.57, 776,703.97 and 308,185.73

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Solution

The fourth proportional to 562,834.57, 776,703.97 and 308,185.73 is: 425,292.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,834.57 : 776,703.97 = 308,185.73 : x
  2. Step 2: Convert to fraction form
    562,834.57/776,703.97 = 308,185.73/x
  3. Step 3: Cross multiply
    562,834.57x = 776,703.97 × 308,185.73
  4. Step 4: Simplify right side
    562,834.57x = 239,369,079,988.35
  5. Step 5: Solve for x
    x = 239,369,079,988.35/562,834.57
  6. Step 6: Final answer
    x = 425,292.07

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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.