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Finding the Fourth Proportional to 396,000, 592,512 and 277,901.76

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Solution

The fourth proportional to 396,000, 592,512 and 277,901.76 is: 415,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,000 : 592,512 = 277,901.76 : x
  2. Step 2: Convert to fraction form
    396,000/592,512 = 277,901.76/x
  3. Step 3: Cross multiply
    396,000x = 592,512 × 277,901.76
  4. Step 4: Simplify right side
    396,000x = 164,660,127,621.12
  5. Step 5: Solve for x
    x = 164,660,127,621.12/396,000
  6. Step 6: Final answer
    x = 415,808.40

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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.