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Finding the Fourth Proportional to 383,655.36, 529,778.70 and 240,661.20

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Solution

The fourth proportional to 383,655.36, 529,778.70 and 240,661.20 is: 332,322.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,655.36 : 529,778.70 = 240,661.20 : x
  2. Step 2: Convert to fraction form
    383,655.36/529,778.70 = 240,661.20/x
  3. Step 3: Cross multiply
    383,655.36x = 529,778.70 × 240,661.20
  4. Step 4: Simplify right side
    383,655.36x = 127,497,177,676.44
  5. Step 5: Solve for x
    x = 127,497,177,676.44/383,655.36
  6. Step 6: Final answer
    x = 332,322.16

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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.