Home / 1,273,203.97-1,909,400.85-420,116.61

Finding the Fourth Proportional to 1,273,203.97, 1,909,400.85 and 420,116.61

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Solution

The fourth proportional to 1,273,203.97, 1,909,400.85 and 420,116.61 is: 630,041.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,203.97 : 1,909,400.85 = 420,116.61 : x
  2. Step 2: Convert to fraction form
    1,273,203.97/1,909,400.85 = 420,116.61/x
  3. Step 3: Cross multiply
    1,273,203.97x = 1,909,400.85 × 420,116.61
  4. Step 4: Simplify right side
    1,273,203.97x = 802,171,012,233.12
  5. Step 5: Solve for x
    x = 802,171,012,233.12/1,273,203.97
  6. Step 6: Final answer
    x = 630,041.24

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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.