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Finding the Fourth Proportional to 593,044.75, 818,400.54 and 321,112.56

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Solution

The fourth proportional to 593,044.75, 818,400.54 and 321,112.56 is: 443,134.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,044.75 : 818,400.54 = 321,112.56 : x
  2. Step 2: Convert to fraction form
    593,044.75/818,400.54 = 321,112.56/x
  3. Step 3: Cross multiply
    593,044.75x = 818,400.54 × 321,112.56
  4. Step 4: Simplify right side
    593,044.75x = 262,798,692,504.78
  5. Step 5: Solve for x
    x = 262,798,692,504.78/593,044.75
  6. Step 6: Final answer
    x = 443,134.67

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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.