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Finding the Fourth Proportional to 593,800.40, 819,429 and 321,856.40

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Solution

The fourth proportional to 593,800.40, 819,429 and 321,856.40 is: 444,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,800.40 : 819,429 = 321,856.40 : x
  2. Step 2: Convert to fraction form
    593,800.40/819,429 = 321,856.40/x
  3. Step 3: Cross multiply
    593,800.40x = 819,429 × 321,856.40
  4. Step 4: Simplify right side
    593,800.40x = 263,738,467,995.60
  5. Step 5: Solve for x
    x = 263,738,467,995.60/593,800.40
  6. Step 6: Final answer
    x = 444,153.40

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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.