Home / 1,640,157.30-2,263,418.10-915,005.07

Finding the Fourth Proportional to 1,640,157.30, 2,263,418.10 and 915,005.07

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Solution

The fourth proportional to 1,640,157.30, 2,263,418.10 and 915,005.07 is: 1,262,707.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,157.30 : 2,263,418.10 = 915,005.07 : x
  2. Step 2: Convert to fraction form
    1,640,157.30/2,263,418.10 = 915,005.07/x
  3. Step 3: Cross multiply
    1,640,157.30x = 2,263,418.10 × 915,005.07
  4. Step 4: Simplify right side
    1,640,157.30x = 2,071,039,037,029.77
  5. Step 5: Solve for x
    x = 2,071,039,037,029.77/1,640,157.30
  6. Step 6: Final answer
    x = 1,262,707.57

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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.