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Finding the Fourth Proportional to 593,146.64, 818,542.72 and 321,216.64

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Solution

The fourth proportional to 593,146.64, 818,542.72 and 321,216.64 is: 443,279.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,146.64 : 818,542.72 = 321,216.64 : x
  2. Step 2: Convert to fraction form
    593,146.64/818,542.72 = 321,216.64/x
  3. Step 3: Cross multiply
    593,146.64x = 818,542.72 × 321,216.64
  4. Step 4: Simplify right side
    593,146.64x = 262,929,542,214.86
  5. Step 5: Solve for x
    x = 262,929,542,214.86/593,146.64
  6. Step 6: Final answer
    x = 443,279.16

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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.