Home / 1,630,856.28-2,250,377.85-905,605.38

Finding the Fourth Proportional to 1,630,856.28, 2,250,377.85 and 905,605.38

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Solution

The fourth proportional to 1,630,856.28, 2,250,377.85 and 905,605.38 is: 1,249,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630,856.28 : 2,250,377.85 = 905,605.38 : x
  2. Step 2: Convert to fraction form
    1,630,856.28/2,250,377.85 = 905,605.38/x
  3. Step 3: Cross multiply
    1,630,856.28x = 2,250,377.85 × 905,605.38
  4. Step 4: Simplify right side
    1,630,856.28x = 2,037,954,287,992.83
  5. Step 5: Solve for x
    x = 2,037,954,287,992.83/1,630,856.28
  6. Step 6: Final answer
    x = 1,249,622.25

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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.