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Finding the Fourth Proportional to 4,652.91, 6,979.58 and 1,490.67

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Solution

The fourth proportional to 4,652.91, 6,979.58 and 1,490.67 is: 2,236.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,652.91 : 6,979.58 = 1,490.67 : x
  2. Step 2: Convert to fraction form
    4,652.91/6,979.58 = 1,490.67/x
  3. Step 3: Cross multiply
    4,652.91x = 6,979.58 × 1,490.67
  4. Step 4: Simplify right side
    4,652.91x = 10,404,243.07
  5. Step 5: Solve for x
    x = 10,404,243.07/4,652.91
  6. Step 6: Final answer
    x = 2,236.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.