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Finding the Fourth Proportional to 696,771.36, 961,543.80 and 394,965.36

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Solution

The fourth proportional to 696,771.36, 961,543.80 and 394,965.36 is: 545,051.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,771.36 : 961,543.80 = 394,965.36 : x
  2. Step 2: Convert to fraction form
    696,771.36/961,543.80 = 394,965.36/x
  3. Step 3: Cross multiply
    696,771.36x = 961,543.80 × 394,965.36
  4. Step 4: Simplify right side
    696,771.36x = 379,776,493,122.77
  5. Step 5: Solve for x
    x = 379,776,493,122.77/696,771.36
  6. Step 6: Final answer
    x = 545,051.81

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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.