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Finding the Fourth Proportional to 562,563.16, 776,183.76 and 320,757.50

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Solution

The fourth proportional to 562,563.16, 776,183.76 and 320,757.50 is: 442,557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,563.16 : 776,183.76 = 320,757.50 : x
  2. Step 2: Convert to fraction form
    562,563.16/776,183.76 = 320,757.50/x
  3. Step 3: Cross multiply
    562,563.16x = 776,183.76 × 320,757.50
  4. Step 4: Simplify right side
    562,563.16x = 248,966,762,398.20
  5. Step 5: Solve for x
    x = 248,966,762,398.20/562,563.16
  6. Step 6: Final answer
    x = 442,557.89

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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.