Home / 1,273,202.97-1,909,399.35-420,115.61

Finding the Fourth Proportional to 1,273,202.97, 1,909,399.35 and 420,115.61

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Solution

The fourth proportional to 1,273,202.97, 1,909,399.35 and 420,115.61 is: 630,039.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,202.97 : 1,909,399.35 = 420,115.61 : x
  2. Step 2: Convert to fraction form
    1,273,202.97/1,909,399.35 = 420,115.61/x
  3. Step 3: Cross multiply
    1,273,202.97x = 1,909,399.35 × 420,115.61
  4. Step 4: Simplify right side
    1,273,202.97x = 802,168,472,658.85
  5. Step 5: Solve for x
    x = 802,168,472,658.85/1,273,202.97
  6. Step 6: Final answer
    x = 630,039.74

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1.5x scale

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.