Home / 445,831.36-668,747.04-192,904.81

Finding the Fourth Proportional to 445,831.36, 668,747.04 and 192,904.81

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Solution

The fourth proportional to 445,831.36, 668,747.04 and 192,904.81 is: 289,357.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,831.36 : 668,747.04 = 192,904.81 : x
  2. Step 2: Convert to fraction form
    445,831.36/668,747.04 = 192,904.81/x
  3. Step 3: Cross multiply
    445,831.36x = 668,747.04 × 192,904.81
  4. Step 4: Simplify right side
    445,831.36x = 129,004,520,689.26
  5. Step 5: Solve for x
    x = 129,004,520,689.26/445,831.36
  6. Step 6: Final answer
    x = 289,357.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.