Home / 1,645,136.65-2,270,273.02-919,976.05

Finding the Fourth Proportional to 1,645,136.65, 2,270,273.02 and 919,976.05

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Solution

The fourth proportional to 1,645,136.65, 2,270,273.02 and 919,976.05 is: 1,269,558.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,136.65 : 2,270,273.02 = 919,976.05 : x
  2. Step 2: Convert to fraction form
    1,645,136.65/2,270,273.02 = 919,976.05/x
  3. Step 3: Cross multiply
    1,645,136.65x = 2,270,273.02 × 919,976.05
  4. Step 4: Simplify right side
    1,645,136.65x = 2,088,596,805,361.17
  5. Step 5: Solve for x
    x = 2,088,596,805,361.17/1,645,136.65
  6. Step 6: Final answer
    x = 1,269,558.25

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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.