Home / 1,683,342.38-2,323,012.49-919,397.76

Finding the Fourth Proportional to 1,683,342.38, 2,323,012.49 and 919,397.76

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Solution

The fourth proportional to 1,683,342.38, 2,323,012.49 and 919,397.76 is: 1,268,768.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683,342.38 : 2,323,012.49 = 919,397.76 : x
  2. Step 2: Convert to fraction form
    1,683,342.38/2,323,012.49 = 919,397.76/x
  3. Step 3: Cross multiply
    1,683,342.38x = 2,323,012.49 × 919,397.76
  4. Step 4: Simplify right side
    1,683,342.38x = 2,135,772,475,161.03
  5. Step 5: Solve for x
    x = 2,135,772,475,161.03/1,683,342.38
  6. Step 6: Final answer
    x = 1,268,768.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.