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Finding the Fourth Proportional to 405,523.44, 559,397.88 and 235,738.80

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Solution

The fourth proportional to 405,523.44, 559,397.88 and 235,738.80 is: 325,189.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,523.44 : 559,397.88 = 235,738.80 : x
  2. Step 2: Convert to fraction form
    405,523.44/559,397.88 = 235,738.80/x
  3. Step 3: Cross multiply
    405,523.44x = 559,397.88 × 235,738.80
  4. Step 4: Simplify right side
    405,523.44x = 131,871,784,953.74
  5. Step 5: Solve for x
    x = 131,871,784,953.74/405,523.44
  6. Step 6: Final answer
    x = 325,189.06

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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.