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Finding the Fourth Proportional to 593,138.95, 818,527.68 and 321,200.62

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Solution

The fourth proportional to 593,138.95, 818,527.68 and 321,200.62 is: 443,254.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,138.95 : 818,527.68 = 321,200.62 : x
  2. Step 2: Convert to fraction form
    593,138.95/818,527.68 = 321,200.62/x
  3. Step 3: Cross multiply
    593,138.95x = 818,527.68 × 321,200.62
  4. Step 4: Simplify right side
    593,138.95x = 262,911,596,256.84
  5. Step 5: Solve for x
    x = 262,911,596,256.84/593,138.95
  6. Step 6: Final answer
    x = 443,254.65

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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.