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Finding the Fourth Proportional to 577,810.28, 797,400 and 316,183.19

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Solution

The fourth proportional to 577,810.28, 797,400 and 316,183.19 is: 436,344.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,810.28 : 797,400 = 316,183.19 : x
  2. Step 2: Convert to fraction form
    577,810.28/797,400 = 316,183.19/x
  3. Step 3: Cross multiply
    577,810.28x = 797,400 × 316,183.19
  4. Step 4: Simplify right side
    577,810.28x = 252,124,471,719
  5. Step 5: Solve for x
    x = 252,124,471,719/577,810.28
  6. Step 6: Final answer
    x = 436,344.73

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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.