Home / 1,191,999.92-1,644,980.40-648,139.37

Finding the Fourth Proportional to 1,191,999.92, 1,644,980.40 and 648,139.37

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Solution

The fourth proportional to 1,191,999.92, 1,644,980.40 and 648,139.37 is: 894,443.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,999.92 : 1,644,980.40 = 648,139.37 : x
  2. Step 2: Convert to fraction form
    1,191,999.92/1,644,980.40 = 648,139.37/x
  3. Step 3: Cross multiply
    1,191,999.92x = 1,644,980.40 × 648,139.37
  4. Step 4: Simplify right side
    1,191,999.92x = 1,066,176,551,893.45
  5. Step 5: Solve for x
    x = 1,066,176,551,893.45/1,191,999.92
  6. Step 6: Final answer
    x = 894,443.48

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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.