Home / 1,229,836.64-1,697,170.20-685,972

Finding the Fourth Proportional to 1,229,836.64, 1,697,170.20 and 685,972

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Solution

The fourth proportional to 1,229,836.64, 1,697,170.20 and 685,972 is: 946,638.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,836.64 : 1,697,170.20 = 685,972 : x
  2. Step 2: Convert to fraction form
    1,229,836.64/1,697,170.20 = 685,972/x
  3. Step 3: Cross multiply
    1,229,836.64x = 1,697,170.20 × 685,972
  4. Step 4: Simplify right side
    1,229,836.64x = 1,164,211,236,434.40
  5. Step 5: Solve for x
    x = 1,164,211,236,434.40/1,229,836.64
  6. Step 6: Final answer
    x = 946,638.93

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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.