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Finding the Fourth Proportional to 562,694.62, 776,561.70 and 320,982.52

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Solution

The fourth proportional to 562,694.62, 776,561.70 and 320,982.52 is: 442,980.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,694.62 : 776,561.70 = 320,982.52 : x
  2. Step 2: Convert to fraction form
    562,694.62/776,561.70 = 320,982.52/x
  3. Step 3: Cross multiply
    562,694.62x = 776,561.70 × 320,982.52
  4. Step 4: Simplify right side
    562,694.62x = 249,262,731,401.48
  5. Step 5: Solve for x
    x = 249,262,731,401.48/562,694.62
  6. Step 6: Final answer
    x = 442,980.48

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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.