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Finding the Fourth Proportional to 593,100.90, 818,477.75 and 321,168.78

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Solution

The fourth proportional to 593,100.90, 818,477.75 and 321,168.78 is: 443,212.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,100.90 : 818,477.75 = 321,168.78 : x
  2. Step 2: Convert to fraction form
    593,100.90/818,477.75 = 321,168.78/x
  3. Step 3: Cross multiply
    593,100.90x = 818,477.75 × 321,168.78
  4. Step 4: Simplify right side
    593,100.90x = 262,869,500,424.65
  5. Step 5: Solve for x
    x = 262,869,500,424.65/593,100.90
  6. Step 6: Final answer
    x = 443,212.11

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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.