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Finding the Fourth Proportional to 377,831.48, 520,520.54 and 262,912.48

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Solution

The fourth proportional to 377,831.48, 520,520.54 and 262,912.48 is: 362,202.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,831.48 : 520,520.54 = 262,912.48 : x
  2. Step 2: Convert to fraction form
    377,831.48/520,520.54 = 262,912.48/x
  3. Step 3: Cross multiply
    377,831.48x = 520,520.54 × 262,912.48
  4. Step 4: Simplify right side
    377,831.48x = 136,851,343,446.48
  5. Step 5: Solve for x
    x = 136,851,343,446.48/377,831.48
  6. Step 6: Final answer
    x = 362,202.07

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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.