Home / 1,293,012.57-1,938,512.39-836,639.53

Finding the Fourth Proportional to 1,293,012.57, 1,938,512.39 and 836,639.53

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Solution

The fourth proportional to 1,293,012.57, 1,938,512.39 and 836,639.53 is: 1,254,308.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,012.57 : 1,938,512.39 = 836,639.53 : x
  2. Step 2: Convert to fraction form
    1,293,012.57/1,938,512.39 = 836,639.53/x
  3. Step 3: Cross multiply
    1,293,012.57x = 1,938,512.39 × 836,639.53
  4. Step 4: Simplify right side
    1,293,012.57x = 1,621,836,096,960.38
  5. Step 5: Solve for x
    x = 1,621,836,096,960.38/1,293,012.57
  6. Step 6: Final answer
    x = 1,254,308.07

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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.