Home / 383,220.30-528,844.14-222,168.72

Finding the Fourth Proportional to 383,220.30, 528,844.14 and 222,168.72

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Solution

The fourth proportional to 383,220.30, 528,844.14 and 222,168.72 is: 306,592.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,220.30 : 528,844.14 = 222,168.72 : x
  2. Step 2: Convert to fraction form
    383,220.30/528,844.14 = 222,168.72/x
  3. Step 3: Cross multiply
    383,220.30x = 528,844.14 × 222,168.72
  4. Step 4: Simplify right side
    383,220.30x = 117,492,625,663.30
  5. Step 5: Solve for x
    x = 117,492,625,663.30/383,220.30
  6. Step 6: Final answer
    x = 306,592.91

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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.