Home / 447,028.14-616,902.03-243,078.78

Finding the Fourth Proportional to 447,028.14, 616,902.03 and 243,078.78

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Solution

The fourth proportional to 447,028.14, 616,902.03 and 243,078.78 is: 335,450.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,028.14 : 616,902.03 = 243,078.78 : x
  2. Step 2: Convert to fraction form
    447,028.14/616,902.03 = 243,078.78/x
  3. Step 3: Cross multiply
    447,028.14x = 616,902.03 × 243,078.78
  4. Step 4: Simplify right side
    447,028.14x = 149,955,792,831.92
  5. Step 5: Solve for x
    x = 149,955,792,831.92/447,028.14
  6. Step 6: Final answer
    x = 335,450.45

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1.5x scale

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.