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Finding the Fourth Proportional to 396,316.45, 594,581.86 and 282,607.86

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Solution

The fourth proportional to 396,316.45, 594,581.86 and 282,607.86 is: 423,988.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,316.45 : 594,581.86 = 282,607.86 : x
  2. Step 2: Convert to fraction form
    396,316.45/594,581.86 = 282,607.86/x
  3. Step 3: Cross multiply
    396,316.45x = 594,581.86 × 282,607.86
  4. Step 4: Simplify right side
    396,316.45x = 168,033,507,165.27
  5. Step 5: Solve for x
    x = 168,033,507,165.27/396,316.45
  6. Step 6: Final answer
    x = 423,988.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.