Home / 1,242,345.94-1,863,560.34-343,712.38

Finding the Fourth Proportional to 1,242,345.94, 1,863,560.34 and 343,712.38

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Solution

The fourth proportional to 1,242,345.94, 1,863,560.34 and 343,712.38 is: 515,580.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,345.94 : 1,863,560.34 = 343,712.38 : x
  2. Step 2: Convert to fraction form
    1,242,345.94/1,863,560.34 = 343,712.38/x
  3. Step 3: Cross multiply
    1,242,345.94x = 1,863,560.34 × 343,712.38
  4. Step 4: Simplify right side
    1,242,345.94x = 640,528,759,735.01
  5. Step 5: Solve for x
    x = 640,528,759,735.01/1,242,345.94
  6. Step 6: Final answer
    x = 515,580.03

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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.