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Finding the Fourth Proportional to 313,866.72, 433,144.56 and 170,636.58

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Solution

The fourth proportional to 313,866.72, 433,144.56 and 170,636.58 is: 235,483.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,866.72 : 433,144.56 = 170,636.58 : x
  2. Step 2: Convert to fraction form
    313,866.72/433,144.56 = 170,636.58/x
  3. Step 3: Cross multiply
    313,866.72x = 433,144.56 × 170,636.58
  4. Step 4: Simplify right side
    313,866.72x = 73,910,306,364.00
  5. Step 5: Solve for x
    x = 73,910,306,364.00/313,866.72
  6. Step 6: Final answer
    x = 235,483.09

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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.