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Finding the Fourth Proportional to 1,409,731.44, 1,945,229.92 and 836,999.88

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Solution

The fourth proportional to 1,409,731.44, 1,945,229.92 and 836,999.88 is: 1,154,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,731.44 : 1,945,229.92 = 836,999.88 : x
  2. Step 2: Convert to fraction form
    1,409,731.44/1,945,229.92 = 836,999.88/x
  3. Step 3: Cross multiply
    1,409,731.44x = 1,945,229.92 × 836,999.88
  4. Step 4: Simplify right side
    1,409,731.44x = 1,628,157,209,612.41
  5. Step 5: Solve for x
    x = 1,628,157,209,612.41/1,409,731.44
  6. Step 6: Final answer
    x = 1,154,941.40

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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.