Home / 1,699,239.80-2,548,866.38-688,380.86

Finding the Fourth Proportional to 1,699,239.80, 2,548,866.38 and 688,380.86

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Solution

The fourth proportional to 1,699,239.80, 2,548,866.38 and 688,380.86 is: 1,032,573.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,699,239.80 : 2,548,866.38 = 688,380.86 : x
  2. Step 2: Convert to fraction form
    1,699,239.80/2,548,866.38 = 688,380.86/x
  3. Step 3: Cross multiply
    1,699,239.80x = 2,548,866.38 × 688,380.86
  4. Step 4: Simplify right side
    1,699,239.80x = 1,754,590,814,503.25
  5. Step 5: Solve for x
    x = 1,754,590,814,503.25/1,699,239.80
  6. Step 6: Final answer
    x = 1,032,573.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.