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Finding the Fourth Proportional to 562,694.49, 776,518.37 and 308,045.68

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Solution

The fourth proportional to 562,694.49, 776,518.37 and 308,045.68 is: 425,103.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,694.49 : 776,518.37 = 308,045.68 : x
  2. Step 2: Convert to fraction form
    562,694.49/776,518.37 = 308,045.68/x
  3. Step 3: Cross multiply
    562,694.49x = 776,518.37 × 308,045.68
  4. Step 4: Simplify right side
    562,694.49x = 239,203,125,837.62
  5. Step 5: Solve for x
    x = 239,203,125,837.62/562,694.49
  6. Step 6: Final answer
    x = 425,103.02

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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.