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Finding the Fourth Proportional to 449,291.72, 620,025.62 and 245,344.11

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Solution

The fourth proportional to 449,291.72, 620,025.62 and 245,344.11 is: 338,576.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,291.72 : 620,025.62 = 245,344.11 : x
  2. Step 2: Convert to fraction form
    449,291.72/620,025.62 = 245,344.11/x
  3. Step 3: Cross multiply
    449,291.72x = 620,025.62 × 245,344.11
  4. Step 4: Simplify right side
    449,291.72x = 152,119,632,689.38
  5. Step 5: Solve for x
    x = 152,119,632,689.38/449,291.72
  6. Step 6: Final answer
    x = 338,576.54

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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.