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Finding the Fourth Proportional to 543,328.20, 814,992.30 and 188,378.10

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Solution

The fourth proportional to 543,328.20, 814,992.30 and 188,378.10 is: 282,567.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,328.20 : 814,992.30 = 188,378.10 : x
  2. Step 2: Convert to fraction form
    543,328.20/814,992.30 = 188,378.10/x
  3. Step 3: Cross multiply
    543,328.20x = 814,992.30 × 188,378.10
  4. Step 4: Simplify right side
    543,328.20x = 153,526,700,988.63
  5. Step 5: Solve for x
    x = 153,526,700,988.63/543,328.20
  6. Step 6: Final answer
    x = 282,567.15

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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.