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Finding the Fourth Proportional to 313,886.72, 433,172.22 and 170,656.64

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Solution

The fourth proportional to 313,886.72, 433,172.22 and 170,656.64 is: 235,510.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,886.72 : 433,172.22 = 170,656.64 : x
  2. Step 2: Convert to fraction form
    313,886.72/433,172.22 = 170,656.64/x
  3. Step 3: Cross multiply
    313,886.72x = 433,172.22 × 170,656.64
  4. Step 4: Simplify right side
    313,886.72x = 73,923,715,606.54
  5. Step 5: Solve for x
    x = 73,923,715,606.54/313,886.72
  6. Step 6: Final answer
    x = 235,510.81

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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.