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Finding the Fourth Proportional to 569,093.40, 853,640.10 and 285,658.20

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Solution

The fourth proportional to 569,093.40, 853,640.10 and 285,658.20 is: 428,487.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,093.40 : 853,640.10 = 285,658.20 : x
  2. Step 2: Convert to fraction form
    569,093.40/853,640.10 = 285,658.20/x
  3. Step 3: Cross multiply
    569,093.40x = 853,640.10 × 285,658.20
  4. Step 4: Simplify right side
    569,093.40x = 243,849,294,413.82
  5. Step 5: Solve for x
    x = 243,849,294,413.82/569,093.40
  6. Step 6: Final answer
    x = 428,487.30

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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.