Home / 1,191,638.64-1,786,896.06-432,945.12

Finding the Fourth Proportional to 1,191,638.64, 1,786,896.06 and 432,945.12

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Solution

The fourth proportional to 1,191,638.64, 1,786,896.06 and 432,945.12 is: 649,213.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,638.64 : 1,786,896.06 = 432,945.12 : x
  2. Step 2: Convert to fraction form
    1,191,638.64/1,786,896.06 = 432,945.12/x
  3. Step 3: Cross multiply
    1,191,638.64x = 1,786,896.06 × 432,945.12
  4. Step 4: Simplify right side
    1,191,638.64x = 773,627,929,124.23
  5. Step 5: Solve for x
    x = 773,627,929,124.23/1,191,638.64
  6. Step 6: Final answer
    x = 649,213.53

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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.