Home / 805,769.45-1,112,251.07-479,081.67

Finding the Fourth Proportional to 805,769.45, 1,112,251.07 and 479,081.67

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Solution

The fourth proportional to 805,769.45, 1,112,251.07 and 479,081.67 is: 661,304.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,769.45 : 1,112,251.07 = 479,081.67 : x
  2. Step 2: Convert to fraction form
    805,769.45/1,112,251.07 = 479,081.67/x
  3. Step 3: Cross multiply
    805,769.45x = 1,112,251.07 × 479,081.67
  4. Step 4: Simplify right side
    805,769.45x = 532,859,099,989.50
  5. Step 5: Solve for x
    x = 532,859,099,989.50/805,769.45
  6. Step 6: Final answer
    x = 661,304.67

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1.5x scale

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.