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Finding the Fourth Proportional to 844,572.32, 1,266,866.88 and 213,486.32

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Solution

The fourth proportional to 844,572.32, 1,266,866.88 and 213,486.32 is: 320,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    844,572.32 : 1,266,866.88 = 213,486.32 : x
  2. Step 2: Convert to fraction form
    844,572.32/1,266,866.88 = 213,486.32/x
  3. Step 3: Cross multiply
    844,572.32x = 1,266,866.88 × 213,486.32
  4. Step 4: Simplify right side
    844,572.32x = 270,458,748,141.08
  5. Step 5: Solve for x
    x = 270,458,748,141.08/844,572.32
  6. Step 6: Final answer
    x = 320,231.60

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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.