Home / 1,943,128.80-2,914,693.20-1,868,479.20

Finding the Fourth Proportional to 1,943,128.80, 2,914,693.20 and 1,868,479.20

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Solution

The fourth proportional to 1,943,128.80, 2,914,693.20 and 1,868,479.20 is: 2,802,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943,128.80 : 2,914,693.20 = 1,868,479.20 : x
  2. Step 2: Convert to fraction form
    1,943,128.80/2,914,693.20 = 1,868,479.20/x
  3. Step 3: Cross multiply
    1,943,128.80x = 2,914,693.20 × 1,868,479.20
  4. Step 4: Simplify right side
    1,943,128.80x = 5,446,043,618,581.44
  5. Step 5: Solve for x
    x = 5,446,043,618,581.44/1,943,128.80
  6. Step 6: Final answer
    x = 2,802,718.80

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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.