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Finding the Fourth Proportional to 392,562.10, 550,831.10 and 392,562.10

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Solution

The fourth proportional to 392,562.10, 550,831.10 and 392,562.10 is: 550,831.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,562.10 : 550,831.10 = 392,562.10 : x
  2. Step 2: Convert to fraction form
    392,562.10/550,831.10 = 392,562.10/x
  3. Step 3: Cross multiply
    392,562.10x = 550,831.10 × 392,562.10
  4. Step 4: Simplify right side
    392,562.10x = 216,235,413,361.31
  5. Step 5: Solve for x
    x = 216,235,413,361.31/392,562.10
  6. Step 6: Final answer
    x = 550,831.10

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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.