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Finding the Fourth Proportional to 562,843.53, 776,732.67 and 308,218.41

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Solution

The fourth proportional to 562,843.53, 776,732.67 and 308,218.41 is: 425,346.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,843.53 : 776,732.67 = 308,218.41 : x
  2. Step 2: Convert to fraction form
    562,843.53/776,732.67 = 308,218.41/x
  3. Step 3: Cross multiply
    562,843.53x = 776,732.67 × 308,218.41
  4. Step 4: Simplify right side
    562,843.53x = 239,403,308,542.46
  5. Step 5: Solve for x
    x = 239,403,308,542.46/562,843.53
  6. Step 6: Final answer
    x = 425,346.11

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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.