Home / 1,778,188.92-2,667,283.52-430,351.76

Finding the Fourth Proportional to 1,778,188.92, 2,667,283.52 and 430,351.76

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Solution

The fourth proportional to 1,778,188.92, 2,667,283.52 and 430,351.76 is: 645,527.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,188.92 : 2,667,283.52 = 430,351.76 : x
  2. Step 2: Convert to fraction form
    1,778,188.92/2,667,283.52 = 430,351.76/x
  3. Step 3: Cross multiply
    1,778,188.92x = 2,667,283.52 × 430,351.76
  4. Step 4: Simplify right side
    1,778,188.92x = 1,147,870,157,251.00
  5. Step 5: Solve for x
    x = 1,147,870,157,251.00/1,778,188.92
  6. Step 6: Final answer
    x = 645,527.67

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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.