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Finding the Fourth Proportional to 562,899.10, 776,777.43 and 308,245.90

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Solution

The fourth proportional to 562,899.10, 776,777.43 and 308,245.90 is: 425,366.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,899.10 : 776,777.43 = 308,245.90 : x
  2. Step 2: Convert to fraction form
    562,899.10/776,777.43 = 308,245.90/x
  3. Step 3: Cross multiply
    562,899.10x = 776,777.43 × 308,245.90
  4. Step 4: Simplify right side
    562,899.10x = 239,438,458,010.04
  5. Step 5: Solve for x
    x = 239,438,458,010.04/562,899.10
  6. Step 6: Final answer
    x = 425,366.57

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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.