Home / 1,258,876.72-1,737,227.96-685,921.60

Finding the Fourth Proportional to 1,258,876.72, 1,737,227.96 and 685,921.60

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Solution

The fourth proportional to 1,258,876.72, 1,737,227.96 and 685,921.60 is: 946,559.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,876.72 : 1,737,227.96 = 685,921.60 : x
  2. Step 2: Convert to fraction form
    1,258,876.72/1,737,227.96 = 685,921.60/x
  3. Step 3: Cross multiply
    1,258,876.72x = 1,737,227.96 × 685,921.60
  4. Step 4: Simplify right side
    1,258,876.72x = 1,191,602,181,887.94
  5. Step 5: Solve for x
    x = 1,191,602,181,887.94/1,258,876.72
  6. Step 6: Final answer
    x = 946,559.87

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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.