Home / 1,690,168.66-2,332,428.92-915,820.63

Finding the Fourth Proportional to 1,690,168.66, 2,332,428.92 and 915,820.63

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Solution

The fourth proportional to 1,690,168.66, 2,332,428.92 and 915,820.63 is: 1,263,830.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,168.66 : 2,332,428.92 = 915,820.63 : x
  2. Step 2: Convert to fraction form
    1,690,168.66/2,332,428.92 = 915,820.63/x
  3. Step 3: Cross multiply
    1,690,168.66x = 2,332,428.92 × 915,820.63
  4. Step 4: Simplify right side
    1,690,168.66x = 2,136,086,512,534.44
  5. Step 5: Solve for x
    x = 2,136,086,512,534.44/1,690,168.66
  6. Step 6: Final answer
    x = 1,263,830.39

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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.