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Finding the Fourth Proportional to 457,169.22, 685,100.43 and 257,069.64

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Solution

The fourth proportional to 457,169.22, 685,100.43 and 257,069.64 is: 385,237.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,169.22 : 685,100.43 = 257,069.64 : x
  2. Step 2: Convert to fraction form
    457,169.22/685,100.43 = 257,069.64/x
  3. Step 3: Cross multiply
    457,169.22x = 685,100.43 × 257,069.64
  4. Step 4: Simplify right side
    457,169.22x = 176,118,520,903.95
  5. Step 5: Solve for x
    x = 176,118,520,903.95/457,169.22
  6. Step 6: Final answer
    x = 385,237.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.