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Finding the Fourth Proportional to 768,168.86, 1,059,914.77 and 441,418.76

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Solution

The fourth proportional to 768,168.86, 1,059,914.77 and 441,418.76 is: 609,066.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,168.86 : 1,059,914.77 = 441,418.76 : x
  2. Step 2: Convert to fraction form
    768,168.86/1,059,914.77 = 441,418.76/x
  3. Step 3: Cross multiply
    768,168.86x = 1,059,914.77 × 441,418.76
  4. Step 4: Simplify right side
    768,168.86x = 467,866,263,479.09
  5. Step 5: Solve for x
    x = 467,866,263,479.09/768,168.86
  6. Step 6: Final answer
    x = 609,066.95

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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.