Home / 1,753,996.80-2,631,686.40-688,857.60

Finding the Fourth Proportional to 1,753,996.80, 2,631,686.40 and 688,857.60

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Solution

The fourth proportional to 1,753,996.80, 2,631,686.40 and 688,857.60 is: 1,033,557.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753,996.80 : 2,631,686.40 = 688,857.60 : x
  2. Step 2: Convert to fraction form
    1,753,996.80/2,631,686.40 = 688,857.60/x
  3. Step 3: Cross multiply
    1,753,996.80x = 2,631,686.40 × 688,857.60
  4. Step 4: Simplify right side
    1,753,996.80x = 1,812,857,177,456.64
  5. Step 5: Solve for x
    x = 1,812,857,177,456.64/1,753,996.80
  6. Step 6: Final answer
    x = 1,033,557.86

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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.