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Finding the Fourth Proportional to 455,596.20, 683,394.30 and 403,108.20

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Solution

The fourth proportional to 455,596.20, 683,394.30 and 403,108.20 is: 604,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,596.20 : 683,394.30 = 403,108.20 : x
  2. Step 2: Convert to fraction form
    455,596.20/683,394.30 = 403,108.20/x
  3. Step 3: Cross multiply
    455,596.20x = 683,394.30 × 403,108.20
  4. Step 4: Simplify right side
    455,596.20x = 275,481,846,163.26
  5. Step 5: Solve for x
    x = 275,481,846,163.26/455,596.20
  6. Step 6: Final answer
    x = 604,662.30

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Half scale
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Double scale
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Similar ratio
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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.