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Finding the Fourth Proportional to 437,953.40, 656,444.10 and 171,625.40

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Solution

The fourth proportional to 437,953.40, 656,444.10 and 171,625.40 is: 257,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,953.40 : 656,444.10 = 171,625.40 : x
  2. Step 2: Convert to fraction form
    437,953.40/656,444.10 = 171,625.40/x
  3. Step 3: Cross multiply
    437,953.40x = 656,444.10 × 171,625.40
  4. Step 4: Simplify right side
    437,953.40x = 112,662,481,240.14
  5. Step 5: Solve for x
    x = 112,662,481,240.14/437,953.40
  6. Step 6: Final answer
    x = 257,247.65

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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.