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Finding the Fourth Proportional to 383,657.36, 529,781.46 and 240,663.20

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Solution

The fourth proportional to 383,657.36, 529,781.46 and 240,663.20 is: 332,324.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,657.36 : 529,781.46 = 240,663.20 : x
  2. Step 2: Convert to fraction form
    383,657.36/529,781.46 = 240,663.20/x
  3. Step 3: Cross multiply
    383,657.36x = 529,781.46 × 240,663.20
  4. Step 4: Simplify right side
    383,657.36x = 127,498,901,464.27
  5. Step 5: Solve for x
    x = 127,498,901,464.27/383,657.36
  6. Step 6: Final answer
    x = 332,324.92

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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.