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Finding the Fourth Proportional to 322,403.60, 451,831.60 and 322,403.60

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Solution

The fourth proportional to 322,403.60, 451,831.60 and 322,403.60 is: 451,831.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,403.60 : 451,831.60 = 322,403.60 : x
  2. Step 2: Convert to fraction form
    322,403.60/451,831.60 = 322,403.60/x
  3. Step 3: Cross multiply
    322,403.60x = 451,831.60 × 322,403.60
  4. Step 4: Simplify right side
    322,403.60x = 145,672,134,433.76
  5. Step 5: Solve for x
    x = 145,672,134,433.76/322,403.60
  6. Step 6: Final answer
    x = 451,831.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.