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Finding the Fourth Proportional to 311,566.40, 467,349.60 and 192,852.80

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Solution

The fourth proportional to 311,566.40, 467,349.60 and 192,852.80 is: 289,279.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,566.40 : 467,349.60 = 192,852.80 : x
  2. Step 2: Convert to fraction form
    311,566.40/467,349.60 = 192,852.80/x
  3. Step 3: Cross multiply
    311,566.40x = 467,349.60 × 192,852.80
  4. Step 4: Simplify right side
    311,566.40x = 90,129,678,938.88
  5. Step 5: Solve for x
    x = 90,129,678,938.88/311,566.40
  6. Step 6: Final answer
    x = 289,279.20

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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.