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Finding the Fourth Proportional to 340,630.32, 470,047.16 and 197,364.84

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Solution

The fourth proportional to 340,630.32, 470,047.16 and 197,364.84 is: 272,350.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,630.32 : 470,047.16 = 197,364.84 : x
  2. Step 2: Convert to fraction form
    340,630.32/470,047.16 = 197,364.84/x
  3. Step 3: Cross multiply
    340,630.32x = 470,047.16 × 197,364.84
  4. Step 4: Simplify right side
    340,630.32x = 92,770,782,525.85
  5. Step 5: Solve for x
    x = 92,770,782,525.85/340,630.32
  6. Step 6: Final answer
    x = 272,350.34

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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.