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Finding the Fourth Proportional to 576,211.40, 864,317.10 and 202,272.20

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Solution

The fourth proportional to 576,211.40, 864,317.10 and 202,272.20 is: 303,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,211.40 : 864,317.10 = 202,272.20 : x
  2. Step 2: Convert to fraction form
    576,211.40/864,317.10 = 202,272.20/x
  3. Step 3: Cross multiply
    576,211.40x = 864,317.10 × 202,272.20
  4. Step 4: Simplify right side
    576,211.40x = 174,827,321,314.62
  5. Step 5: Solve for x
    x = 174,827,321,314.62/576,211.40
  6. Step 6: Final answer
    x = 303,408.30

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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.