Home / 383,211.20-528,831.62-222,159.60

Finding the Fourth Proportional to 383,211.20, 528,831.62 and 222,159.60

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Solution

The fourth proportional to 383,211.20, 528,831.62 and 222,159.60 is: 306,580.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,211.20 : 528,831.62 = 222,159.60 : x
  2. Step 2: Convert to fraction form
    383,211.20/528,831.62 = 222,159.60/x
  3. Step 3: Cross multiply
    383,211.20x = 528,831.62 × 222,159.60
  4. Step 4: Simplify right side
    383,211.20x = 117,485,020,055.75
  5. Step 5: Solve for x
    x = 117,485,020,055.75/383,211.20
  6. Step 6: Final answer
    x = 306,580.34

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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.