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Finding the Fourth Proportional to 620,020.08, 930,040.92 and 170,738.64

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Solution

The fourth proportional to 620,020.08, 930,040.92 and 170,738.64 is: 256,110.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,020.08 : 930,040.92 = 170,738.64 : x
  2. Step 2: Convert to fraction form
    620,020.08/930,040.92 = 170,738.64/x
  3. Step 3: Cross multiply
    620,020.08x = 930,040.92 × 170,738.64
  4. Step 4: Simplify right side
    620,020.08x = 158,793,921,825.15
  5. Step 5: Solve for x
    x = 158,793,921,825.15/620,020.08
  6. Step 6: Final answer
    x = 256,110.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.