Home / 1,200,508.45-1,656,844.55-691,310.05

Finding the Fourth Proportional to 1,200,508.45, 1,656,844.55 and 691,310.05

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Solution

The fourth proportional to 1,200,508.45, 1,656,844.55 and 691,310.05 is: 954,090.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,508.45 : 1,656,844.55 = 691,310.05 : x
  2. Step 2: Convert to fraction form
    1,200,508.45/1,656,844.55 = 691,310.05/x
  3. Step 3: Cross multiply
    1,200,508.45x = 1,656,844.55 × 691,310.05
  4. Step 4: Simplify right side
    1,200,508.45x = 1,145,393,285,246.18
  5. Step 5: Solve for x
    x = 1,145,393,285,246.18/1,200,508.45
  6. Step 6: Final answer
    x = 954,090.15

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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.