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Finding the Fourth Proportional to 298,886.76, 412,458.44 and 162,921.88

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Solution

The fourth proportional to 298,886.76, 412,458.44 and 162,921.88 is: 224,829.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,886.76 : 412,458.44 = 162,921.88 : x
  2. Step 2: Convert to fraction form
    298,886.76/412,458.44 = 162,921.88/x
  3. Step 3: Cross multiply
    298,886.76x = 412,458.44 × 162,921.88
  4. Step 4: Simplify right side
    298,886.76x = 67,198,504,466.67
  5. Step 5: Solve for x
    x = 67,198,504,466.67/298,886.76
  6. Step 6: Final answer
    x = 224,829.31

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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.