Home / 1,184,138.93-1,634,112.86-640,274.57

Finding the Fourth Proportional to 1,184,138.93, 1,634,112.86 and 640,274.57

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Solution

The fourth proportional to 1,184,138.93, 1,634,112.86 and 640,274.57 is: 883,579.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184,138.93 : 1,634,112.86 = 640,274.57 : x
  2. Step 2: Convert to fraction form
    1,184,138.93/1,634,112.86 = 640,274.57/x
  3. Step 3: Cross multiply
    1,184,138.93x = 1,634,112.86 × 640,274.57
  4. Step 4: Simplify right side
    1,184,138.93x = 1,046,280,897,396.03
  5. Step 5: Solve for x
    x = 1,046,280,897,396.03/1,184,138.93
  6. Step 6: Final answer
    x = 883,579.52

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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.