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Finding the Fourth Proportional to 1,266,524.86, 1,747,751.80 and 693,555.16

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Solution

The fourth proportional to 1,266,524.86, 1,747,751.80 and 693,555.16 is: 957,077.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,524.86 : 1,747,751.80 = 693,555.16 : x
  2. Step 2: Convert to fraction form
    1,266,524.86/1,747,751.80 = 693,555.16/x
  3. Step 3: Cross multiply
    1,266,524.86x = 1,747,751.80 × 693,555.16
  4. Step 4: Simplify right side
    1,266,524.86x = 1,212,162,279,289.29
  5. Step 5: Solve for x
    x = 1,212,162,279,289.29/1,266,524.86
  6. Step 6: Final answer
    x = 957,077.37

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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.