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Finding the Fourth Proportional to 343,902.56, 474,600.35 and 190,940.76

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Solution

The fourth proportional to 343,902.56, 474,600.35 and 190,940.76 is: 263,506.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,902.56 : 474,600.35 = 190,940.76 : x
  2. Step 2: Convert to fraction form
    343,902.56/474,600.35 = 190,940.76/x
  3. Step 3: Cross multiply
    343,902.56x = 474,600.35 × 190,940.76
  4. Step 4: Simplify right side
    343,902.56x = 90,620,550,222.87
  5. Step 5: Solve for x
    x = 90,620,550,222.87/343,902.56
  6. Step 6: Final answer
    x = 263,506.47

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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.