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Finding the Fourth Proportional to 556,089.44, 767,296.56 and 351,996.80

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Solution

The fourth proportional to 556,089.44, 767,296.56 and 351,996.80 is: 485,687.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,089.44 : 767,296.56 = 351,996.80 : x
  2. Step 2: Convert to fraction form
    556,089.44/767,296.56 = 351,996.80/x
  3. Step 3: Cross multiply
    556,089.44x = 767,296.56 × 351,996.80
  4. Step 4: Simplify right side
    556,089.44x = 270,085,933,771.01
  5. Step 5: Solve for x
    x = 270,085,933,771.01/556,089.44
  6. Step 6: Final answer
    x = 485,687.94

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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.