Home / 1,938,880.80-2,909,649.60-676,708.43

Finding the Fourth Proportional to 1,938,880.80, 2,909,649.60 and 676,708.43

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Solution

The fourth proportional to 1,938,880.80, 2,909,649.60 and 676,708.43 is: 1,015,526.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,880.80 : 2,909,649.60 = 676,708.43 : x
  2. Step 2: Convert to fraction form
    1,938,880.80/2,909,649.60 = 676,708.43/x
  3. Step 3: Cross multiply
    1,938,880.80x = 2,909,649.60 × 676,708.43
  4. Step 4: Simplify right side
    1,938,880.80x = 1,968,984,398,117.88
  5. Step 5: Solve for x
    x = 1,968,984,398,117.88/1,938,880.80
  6. Step 6: Final answer
    x = 1,015,526.28

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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.