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Finding the Fourth Proportional to 314,415.88, 433,901.72 and 171,183.78

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Solution

The fourth proportional to 314,415.88, 433,901.72 and 171,183.78 is: 236,237.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,415.88 : 433,901.72 = 171,183.78 : x
  2. Step 2: Convert to fraction form
    314,415.88/433,901.72 = 171,183.78/x
  3. Step 3: Cross multiply
    314,415.88x = 433,901.72 × 171,183.78
  4. Step 4: Simplify right side
    314,415.88x = 74,276,936,578.10
  5. Step 5: Solve for x
    x = 74,276,936,578.10/314,415.88
  6. Step 6: Final answer
    x = 236,237.87

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1.5x scale

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.