Home / 579,245.20-868,234.20-205,075.60

Finding the Fourth Proportional to 579,245.20, 868,234.20 and 205,075.60

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Solution

The fourth proportional to 579,245.20, 868,234.20 and 205,075.60 is: 307,389.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,245.20 : 868,234.20 = 205,075.60 : x
  2. Step 2: Convert to fraction form
    579,245.20/868,234.20 = 205,075.60/x
  3. Step 3: Cross multiply
    579,245.20x = 868,234.20 × 205,075.60
  4. Step 4: Simplify right side
    579,245.20x = 178,053,649,505.52
  5. Step 5: Solve for x
    x = 178,053,649,505.52/579,245.20
  6. Step 6: Final answer
    x = 307,389.08

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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.