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Finding the Fourth Proportional to 593,144.47, 818,543.37 and 321,212.59

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Solution

The fourth proportional to 593,144.47, 818,543.37 and 321,212.59 is: 443,275.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,144.47 : 818,543.37 = 321,212.59 : x
  2. Step 2: Convert to fraction form
    593,144.47/818,543.37 = 321,212.59/x
  3. Step 3: Cross multiply
    593,144.47x = 818,543.37 × 321,212.59
  4. Step 4: Simplify right side
    593,144.47x = 262,926,435,063.22
  5. Step 5: Solve for x
    x = 262,926,435,063.22/593,144.47
  6. Step 6: Final answer
    x = 443,275.54

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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.