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Finding the Fourth Proportional to 593,610.16, 819,180.12 and 321,679.12

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Solution

The fourth proportional to 593,610.16, 819,180.12 and 321,679.12 is: 443,916.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,610.16 : 819,180.12 = 321,679.12 : x
  2. Step 2: Convert to fraction form
    593,610.16/819,180.12 = 321,679.12/x
  3. Step 3: Cross multiply
    593,610.16x = 819,180.12 × 321,679.12
  4. Step 4: Simplify right side
    593,610.16x = 263,513,140,123.09
  5. Step 5: Solve for x
    x = 263,513,140,123.09/593,610.16
  6. Step 6: Final answer
    x = 443,916.16

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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.