Home / 1,943,685.60-2,915,528.40-681,640.80

Finding the Fourth Proportional to 1,943,685.60, 2,915,528.40 and 681,640.80

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Solution

The fourth proportional to 1,943,685.60, 2,915,528.40 and 681,640.80 is: 1,022,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943,685.60 : 2,915,528.40 = 681,640.80 : x
  2. Step 2: Convert to fraction form
    1,943,685.60/2,915,528.40 = 681,640.80/x
  3. Step 3: Cross multiply
    1,943,685.60x = 2,915,528.40 × 681,640.80
  4. Step 4: Simplify right side
    1,943,685.60x = 1,987,343,110,998.72
  5. Step 5: Solve for x
    x = 1,987,343,110,998.72/1,943,685.60
  6. Step 6: Final answer
    x = 1,022,461.20

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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.