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Finding the Fourth Proportional to 384,620.20, 575,618.10 and 384,620.20

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Solution

The fourth proportional to 384,620.20, 575,618.10 and 384,620.20 is: 575,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,620.20 : 575,618.10 = 384,620.20 : x
  2. Step 2: Convert to fraction form
    384,620.20/575,618.10 = 384,620.20/x
  3. Step 3: Cross multiply
    384,620.20x = 575,618.10 × 384,620.20
  4. Step 4: Simplify right side
    384,620.20x = 221,394,348,745.62
  5. Step 5: Solve for x
    x = 221,394,348,745.62/384,620.20
  6. Step 6: Final answer
    x = 575,618.10

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1.5x scale

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.