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Finding the Fourth Proportional to 359,776.65, 496,481.90 and 198,628.77

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Solution

The fourth proportional to 359,776.65, 496,481.90 and 198,628.77 is: 274,102.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,776.65 : 496,481.90 = 198,628.77 : x
  2. Step 2: Convert to fraction form
    359,776.65/496,481.90 = 198,628.77/x
  3. Step 3: Cross multiply
    359,776.65x = 496,481.90 × 198,628.77
  4. Step 4: Simplify right side
    359,776.65x = 98,615,588,131.12
  5. Step 5: Solve for x
    x = 98,615,588,131.12/359,776.65
  6. Step 6: Final answer
    x = 274,102.25

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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.