Home / 1,913,415.37-2,640,513.36-1,053,975.63

Finding the Fourth Proportional to 1,913,415.37, 2,640,513.36 and 1,053,975.63

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Solution

The fourth proportional to 1,913,415.37, 2,640,513.36 and 1,053,975.63 is: 1,454,486.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,415.37 : 2,640,513.36 = 1,053,975.63 : x
  2. Step 2: Convert to fraction form
    1,913,415.37/2,640,513.36 = 1,053,975.63/x
  3. Step 3: Cross multiply
    1,913,415.37x = 2,640,513.36 × 1,053,975.63
  4. Step 4: Simplify right side
    1,913,415.37x = 2,783,036,734,112.59
  5. Step 5: Solve for x
    x = 2,783,036,734,112.59/1,913,415.37
  6. Step 6: Final answer
    x = 1,454,486.45

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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.