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Finding the Fourth Proportional to 359,805.70, 496,561.02 and 206,893.60

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Solution

The fourth proportional to 359,805.70, 496,561.02 and 206,893.60 is: 285,529.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,805.70 : 496,561.02 = 206,893.60 : x
  2. Step 2: Convert to fraction form
    359,805.70/496,561.02 = 206,893.60/x
  3. Step 3: Cross multiply
    359,805.70x = 496,561.02 × 206,893.60
  4. Step 4: Simplify right side
    359,805.70x = 102,735,297,047.47
  5. Step 5: Solve for x
    x = 102,735,297,047.47/359,805.70
  6. Step 6: Final answer
    x = 285,529.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.