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Finding the Fourth Proportional to 543,202.80, 814,804.20 and 403,234.80

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Solution

The fourth proportional to 543,202.80, 814,804.20 and 403,234.80 is: 604,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,202.80 : 814,804.20 = 403,234.80 : x
  2. Step 2: Convert to fraction form
    543,202.80/814,804.20 = 403,234.80/x
  3. Step 3: Cross multiply
    543,202.80x = 814,804.20 × 403,234.80
  4. Step 4: Simplify right side
    543,202.80x = 328,557,408,626.16
  5. Step 5: Solve for x
    x = 328,557,408,626.16/543,202.80
  6. Step 6: Final answer
    x = 604,852.20

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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.