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Finding the Fourth Proportional to 400,558.48, 552,831.42 and 228,475.60

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Solution

The fourth proportional to 400,558.48, 552,831.42 and 228,475.60 is: 315,330.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,558.48 : 552,831.42 = 228,475.60 : x
  2. Step 2: Convert to fraction form
    400,558.48/552,831.42 = 228,475.60/x
  3. Step 3: Cross multiply
    400,558.48x = 552,831.42 × 228,475.60
  4. Step 4: Simplify right side
    400,558.48x = 126,308,490,383.35
  5. Step 5: Solve for x
    x = 126,308,490,383.35/400,558.48
  6. Step 6: Final answer
    x = 315,330.96

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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.