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Finding the Fourth Proportional to 383,190.20, 528,762.74 and 235,991.76

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Solution

The fourth proportional to 383,190.20, 528,762.74 and 235,991.76 is: 325,644.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,190.20 : 528,762.74 = 235,991.76 : x
  2. Step 2: Convert to fraction form
    383,190.20/528,762.74 = 235,991.76/x
  3. Step 3: Cross multiply
    383,190.20x = 528,762.74 × 235,991.76
  4. Step 4: Simplify right side
    383,190.20x = 124,783,649,635.02
  5. Step 5: Solve for x
    x = 124,783,649,635.02/383,190.20
  6. Step 6: Final answer
    x = 325,644.16

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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.