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Finding the Fourth Proportional to 437,561.60, 656,415.30 and 171,330.80

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Solution

The fourth proportional to 437,561.60, 656,415.30 and 171,330.80 is: 257,024.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,561.60 : 656,415.30 = 171,330.80 : x
  2. Step 2: Convert to fraction form
    437,561.60/656,415.30 = 171,330.80/x
  3. Step 3: Cross multiply
    437,561.60x = 656,415.30 × 171,330.80
  4. Step 4: Simplify right side
    437,561.60x = 112,464,158,481.24
  5. Step 5: Solve for x
    x = 112,464,158,481.24/437,561.60
  6. Step 6: Final answer
    x = 257,024.74

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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.