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Finding the Fourth Proportional to 543,075.90, 814,609.80 and 163,995.90

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Solution

The fourth proportional to 543,075.90, 814,609.80 and 163,995.90 is: 245,992.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,075.90 : 814,609.80 = 163,995.90 : x
  2. Step 2: Convert to fraction form
    543,075.90/814,609.80 = 163,995.90/x
  3. Step 3: Cross multiply
    543,075.90x = 814,609.80 × 163,995.90
  4. Step 4: Simplify right side
    543,075.90x = 133,592,667,299.82
  5. Step 5: Solve for x
    x = 133,592,667,299.82/543,075.90
  6. Step 6: Final answer
    x = 245,992.63

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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.