Home / 1,336,698.85-2,005,540.35-438,169.90

Finding the Fourth Proportional to 1,336,698.85, 2,005,540.35 and 438,169.90

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Solution

The fourth proportional to 1,336,698.85, 2,005,540.35 and 438,169.90 is: 657,416.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,698.85 : 2,005,540.35 = 438,169.90 : x
  2. Step 2: Convert to fraction form
    1,336,698.85/2,005,540.35 = 438,169.90/x
  3. Step 3: Cross multiply
    1,336,698.85x = 2,005,540.35 × 438,169.90
  4. Step 4: Simplify right side
    1,336,698.85x = 878,767,414,605.47
  5. Step 5: Solve for x
    x = 878,767,414,605.47/1,336,698.85
  6. Step 6: Final answer
    x = 657,416.15

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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.