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Finding the Fourth Proportional to 396,671.49, 547,401.05 and 224,585.01

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Solution

The fourth proportional to 396,671.49, 547,401.05 and 224,585.01 is: 309,924.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,671.49 : 547,401.05 = 224,585.01 : x
  2. Step 2: Convert to fraction form
    396,671.49/547,401.05 = 224,585.01/x
  3. Step 3: Cross multiply
    396,671.49x = 547,401.05 × 224,585.01
  4. Step 4: Simplify right side
    396,671.49x = 122,938,069,165.34
  5. Step 5: Solve for x
    x = 122,938,069,165.34/396,671.49
  6. Step 6: Final answer
    x = 309,924.14

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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.