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Finding the Fourth Proportional to 496,679.68, 744,831.60 and 212,358.34

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Solution

The fourth proportional to 496,679.68, 744,831.60 and 212,358.34 is: 318,457.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,679.68 : 744,831.60 = 212,358.34 : x
  2. Step 2: Convert to fraction form
    496,679.68/744,831.60 = 212,358.34/x
  3. Step 3: Cross multiply
    496,679.68x = 744,831.60 × 212,358.34
  4. Step 4: Simplify right side
    496,679.68x = 158,171,202,155.54
  5. Step 5: Solve for x
    x = 158,171,202,155.54/496,679.68
  6. Step 6: Final answer
    x = 318,457.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.