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Finding the Fourth Proportional to 646,406.73, 969,607.44 and 197,126.28

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Solution

The fourth proportional to 646,406.73, 969,607.44 and 197,126.28 is: 295,688.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,406.73 : 969,607.44 = 197,126.28 : x
  2. Step 2: Convert to fraction form
    646,406.73/969,607.44 = 197,126.28/x
  3. Step 3: Cross multiply
    646,406.73x = 969,607.44 × 197,126.28
  4. Step 4: Simplify right side
    646,406.73x = 191,135,107,707.52
  5. Step 5: Solve for x
    x = 191,135,107,707.52/646,406.73
  6. Step 6: Final answer
    x = 295,688.61

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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.