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Finding the Fourth Proportional to 313,859.74, 433,121.34 and 170,623.36

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Solution

The fourth proportional to 313,859.74, 433,121.34 and 170,623.36 is: 235,457.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,859.74 : 433,121.34 = 170,623.36 : x
  2. Step 2: Convert to fraction form
    313,859.74/433,121.34 = 170,623.36/x
  3. Step 3: Cross multiply
    313,859.74x = 433,121.34 × 170,623.36
  4. Step 4: Simplify right side
    313,859.74x = 73,900,618,318.50
  5. Step 5: Solve for x
    x = 73,900,618,318.50/313,859.74
  6. Step 6: Final answer
    x = 235,457.46

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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.