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Finding the Fourth Proportional to 358,391.16, 494,374.08 and 224,021.88

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Solution

The fourth proportional to 358,391.16, 494,374.08 and 224,021.88 is: 309,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,391.16 : 494,374.08 = 224,021.88 : x
  2. Step 2: Convert to fraction form
    358,391.16/494,374.08 = 224,021.88/x
  3. Step 3: Cross multiply
    358,391.16x = 494,374.08 × 224,021.88
  4. Step 4: Simplify right side
    358,391.16x = 110,750,610,824.87
  5. Step 5: Solve for x
    x = 110,750,610,824.87/358,391.16
  6. Step 6: Final answer
    x = 309,021.60

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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.