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Finding the Fourth Proportional to 396,065.70, 592,370.55 and 354,248.10

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Solution

The fourth proportional to 396,065.70, 592,370.55 and 354,248.10 is: 529,826.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,065.70 : 592,370.55 = 354,248.10 : x
  2. Step 2: Convert to fraction form
    396,065.70/592,370.55 = 354,248.10/x
  3. Step 3: Cross multiply
    396,065.70x = 592,370.55 × 354,248.10
  4. Step 4: Simplify right side
    396,065.70x = 209,846,141,833.46
  5. Step 5: Solve for x
    x = 209,846,141,833.46/396,065.70
  6. Step 6: Final answer
    x = 529,826.60

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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.