Home / 1,918,541.49-2,877,136.68-638,801.43

Finding the Fourth Proportional to 1,918,541.49, 2,877,136.68 and 638,801.43

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Solution

The fourth proportional to 1,918,541.49, 2,877,136.68 and 638,801.43 is: 957,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,541.49 : 2,877,136.68 = 638,801.43 : x
  2. Step 2: Convert to fraction form
    1,918,541.49/2,877,136.68 = 638,801.43/x
  3. Step 3: Cross multiply
    1,918,541.49x = 2,877,136.68 × 638,801.43
  4. Step 4: Simplify right side
    1,918,541.49x = 1,837,919,025,489.45
  5. Step 5: Solve for x
    x = 1,837,919,025,489.45/1,918,541.49
  6. Step 6: Final answer
    x = 957,977.21

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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.