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Finding the Fourth Proportional to 359,986.86, 496,451.97 and 245,436.66

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Solution

The fourth proportional to 359,986.86, 496,451.97 and 245,436.66 is: 338,477.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,986.86 : 496,451.97 = 245,436.66 : x
  2. Step 2: Convert to fraction form
    359,986.86/496,451.97 = 245,436.66/x
  3. Step 3: Cross multiply
    359,986.86x = 496,451.97 × 245,436.66
  4. Step 4: Simplify right side
    359,986.86x = 121,847,513,367.22
  5. Step 5: Solve for x
    x = 121,847,513,367.22/359,986.86
  6. Step 6: Final answer
    x = 338,477.67

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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.