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Finding the Fourth Proportional to 383,244.16, 528,882.44 and 219,927.28

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Solution

The fourth proportional to 383,244.16, 528,882.44 and 219,927.28 is: 303,502.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,244.16 : 528,882.44 = 219,927.28 : x
  2. Step 2: Convert to fraction form
    383,244.16/528,882.44 = 219,927.28/x
  3. Step 3: Cross multiply
    383,244.16x = 528,882.44 × 219,927.28
  4. Step 4: Simplify right side
    383,244.16x = 116,315,676,468.96
  5. Step 5: Solve for x
    x = 116,315,676,468.96/383,244.16
  6. Step 6: Final answer
    x = 303,502.80

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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.