Home / 1,299,659.38-1,949,494.53-853,205.20

Finding the Fourth Proportional to 1,299,659.38, 1,949,494.53 and 853,205.20

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Solution

The fourth proportional to 1,299,659.38, 1,949,494.53 and 853,205.20 is: 1,279,811.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,659.38 : 1,949,494.53 = 853,205.20 : x
  2. Step 2: Convert to fraction form
    1,299,659.38/1,949,494.53 = 853,205.20/x
  3. Step 3: Cross multiply
    1,299,659.38x = 1,949,494.53 × 853,205.20
  4. Step 4: Simplify right side
    1,299,659.38x = 1,663,318,868,693.34
  5. Step 5: Solve for x
    x = 1,663,318,868,693.34/1,299,659.38
  6. Step 6: Final answer
    x = 1,279,811.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.