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Finding the Fourth Proportional to 392,562.60, 550,831.80 and 392,562.60

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Solution

The fourth proportional to 392,562.60, 550,831.80 and 392,562.60 is: 550,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,562.60 : 550,831.80 = 392,562.60 : x
  2. Step 2: Convert to fraction form
    392,562.60/550,831.80 = 392,562.60/x
  3. Step 3: Cross multiply
    392,562.60x = 550,831.80 × 392,562.60
  4. Step 4: Simplify right side
    392,562.60x = 216,235,963,570.68
  5. Step 5: Solve for x
    x = 216,235,963,570.68/392,562.60
  6. Step 6: Final answer
    x = 550,831.80

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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.