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Finding the Fourth Proportional to 621,906.77, 932,865.38 and 172,662.67

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Solution

The fourth proportional to 621,906.77, 932,865.38 and 172,662.67 is: 258,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,906.77 : 932,865.38 = 172,662.67 : x
  2. Step 2: Convert to fraction form
    621,906.77/932,865.38 = 172,662.67/x
  3. Step 3: Cross multiply
    621,906.77x = 932,865.38 × 172,662.67
  4. Step 4: Simplify right side
    621,906.77x = 161,071,024,065.89
  5. Step 5: Solve for x
    x = 161,071,024,065.89/621,906.77
  6. Step 6: Final answer
    x = 258,995.45

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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.