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Finding the Fourth Proportional to 562,730.94, 776,553.21 and 308,076.66

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Solution

The fourth proportional to 562,730.94, 776,553.21 and 308,076.66 is: 425,137.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,730.94 : 776,553.21 = 308,076.66 : x
  2. Step 2: Convert to fraction form
    562,730.94/776,553.21 = 308,076.66/x
  3. Step 3: Cross multiply
    562,730.94x = 776,553.21 × 308,076.66
  4. Step 4: Simplify right side
    562,730.94x = 239,237,919,249.08
  5. Step 5: Solve for x
    x = 239,237,919,249.08/562,730.94
  6. Step 6: Final answer
    x = 425,137.31

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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.