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Finding the Fourth Proportional to 298,865.72, 412,434.86 and 169,804.44

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Solution

The fourth proportional to 298,865.72, 412,434.86 and 169,804.44 is: 234,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,865.72 : 412,434.86 = 169,804.44 : x
  2. Step 2: Convert to fraction form
    298,865.72/412,434.86 = 169,804.44/x
  3. Step 3: Cross multiply
    298,865.72x = 412,434.86 × 169,804.44
  4. Step 4: Simplify right side
    298,865.72x = 70,033,270,438.78
  5. Step 5: Solve for x
    x = 70,033,270,438.78/298,865.72
  6. Step 6: Final answer
    x = 234,330.22

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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.