Home / 1,353,618.40-1,867,993.70-809,776.84

Finding the Fourth Proportional to 1,353,618.40, 1,867,993.70 and 809,776.84

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Solution

The fourth proportional to 1,353,618.40, 1,867,993.70 and 809,776.84 is: 1,117,492.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,618.40 : 1,867,993.70 = 809,776.84 : x
  2. Step 2: Convert to fraction form
    1,353,618.40/1,867,993.70 = 809,776.84/x
  3. Step 3: Cross multiply
    1,353,618.40x = 1,867,993.70 × 809,776.84
  4. Step 4: Simplify right side
    1,353,618.40x = 1,512,658,035,525.91
  5. Step 5: Solve for x
    x = 1,512,658,035,525.91/1,353,618.40
  6. Step 6: Final answer
    x = 1,117,492.22

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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.