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Finding the Fourth Proportional to 320,247.46, 480,672.15 and 162,589.06

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Solution

The fourth proportional to 320,247.46, 480,672.15 and 162,589.06 is: 244,036.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,247.46 : 480,672.15 = 162,589.06 : x
  2. Step 2: Convert to fraction form
    320,247.46/480,672.15 = 162,589.06/x
  3. Step 3: Cross multiply
    320,247.46x = 480,672.15 × 162,589.06
  4. Step 4: Simplify right side
    320,247.46x = 78,152,033,036.68
  5. Step 5: Solve for x
    x = 78,152,033,036.68/320,247.46
  6. Step 6: Final answer
    x = 244,036.39

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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.