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Finding the Fourth Proportional to 298,150.56, 411,458.45 and 170,850.74

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Solution

The fourth proportional to 298,150.56, 411,458.45 and 170,850.74 is: 235,780.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,150.56 : 411,458.45 = 170,850.74 : x
  2. Step 2: Convert to fraction form
    298,150.56/411,458.45 = 170,850.74/x
  3. Step 3: Cross multiply
    298,150.56x = 411,458.45 × 170,850.74
  4. Step 4: Simplify right side
    298,150.56x = 70,297,977,750.21
  5. Step 5: Solve for x
    x = 70,297,977,750.21/298,150.56
  6. Step 6: Final answer
    x = 235,780.13

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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.