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Finding the Fourth Proportional to 359,703.39, 496,390.77 and 198,558.55

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Solution

The fourth proportional to 359,703.39, 496,390.77 and 198,558.55 is: 274,010.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,703.39 : 496,390.77 = 198,558.55 : x
  2. Step 2: Convert to fraction form
    359,703.39/496,390.77 = 198,558.55/x
  3. Step 3: Cross multiply
    359,703.39x = 496,390.77 × 198,558.55
  4. Step 4: Simplify right side
    359,703.39x = 98,562,628,049.84
  5. Step 5: Solve for x
    x = 98,562,628,049.84/359,703.39
  6. Step 6: Final answer
    x = 274,010.84

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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.