Home / 1,138,615.38-1,571,389.27-629,416.17

Finding the Fourth Proportional to 1,138,615.38, 1,571,389.27 and 629,416.17

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Solution

The fourth proportional to 1,138,615.38, 1,571,389.27 and 629,416.17 is: 868,649.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,615.38 : 1,571,389.27 = 629,416.17 : x
  2. Step 2: Convert to fraction form
    1,138,615.38/1,571,389.27 = 629,416.17/x
  3. Step 3: Cross multiply
    1,138,615.38x = 1,571,389.27 × 629,416.17
  4. Step 4: Simplify right side
    1,138,615.38x = 989,057,814,328.96
  5. Step 5: Solve for x
    x = 989,057,814,328.96/1,138,615.38
  6. Step 6: Final answer
    x = 868,649.62

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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.