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Finding the Fourth Proportional to 593,219.58, 818,638.94 and 321,281.25

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Solution

The fourth proportional to 593,219.58, 818,638.94 and 321,281.25 is: 443,365.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,219.58 : 818,638.94 = 321,281.25 : x
  2. Step 2: Convert to fraction form
    593,219.58/818,638.94 = 321,281.25/x
  3. Step 3: Cross multiply
    593,219.58x = 818,638.94 × 321,281.25
  4. Step 4: Simplify right side
    593,219.58x = 263,013,340,335.47
  5. Step 5: Solve for x
    x = 263,013,340,335.47/593,219.58
  6. Step 6: Final answer
    x = 443,365.91

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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.