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Finding the Fourth Proportional to 313,843.88, 433,104.86 and 170,603.92

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Solution

The fourth proportional to 313,843.88, 433,104.86 and 170,603.92 is: 235,433.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,843.88 : 433,104.86 = 170,603.92 : x
  2. Step 2: Convert to fraction form
    313,843.88/433,104.86 = 170,603.92/x
  3. Step 3: Cross multiply
    313,843.88x = 433,104.86 × 170,603.92
  4. Step 4: Simplify right side
    313,843.88x = 73,889,386,887.05
  5. Step 5: Solve for x
    x = 73,889,386,887.05/313,843.88
  6. Step 6: Final answer
    x = 235,433.58

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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.