Home / 383,200.28-528,816.54-222,148.70

Finding the Fourth Proportional to 383,200.28, 528,816.54 and 222,148.70

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Solution

The fourth proportional to 383,200.28, 528,816.54 and 222,148.70 is: 306,565.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,200.28 : 528,816.54 = 222,148.70 : x
  2. Step 2: Convert to fraction form
    383,200.28/528,816.54 = 222,148.70/x
  3. Step 3: Cross multiply
    383,200.28x = 528,816.54 × 222,148.70
  4. Step 4: Simplify right side
    383,200.28x = 117,475,906,899.50
  5. Step 5: Solve for x
    x = 117,475,906,899.50/383,200.28
  6. Step 6: Final answer
    x = 306,565.30

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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.