Home / 1,191,211.68-1,786,994.64-392,345.76

Finding the Fourth Proportional to 1,191,211.68, 1,786,994.64 and 392,345.76

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Solution

The fourth proportional to 1,191,211.68, 1,786,994.64 and 392,345.76 is: 588,576.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,211.68 : 1,786,994.64 = 392,345.76 : x
  2. Step 2: Convert to fraction form
    1,191,211.68/1,786,994.64 = 392,345.76/x
  3. Step 3: Cross multiply
    1,191,211.68x = 1,786,994.64 × 392,345.76
  4. Step 4: Simplify right side
    1,191,211.68x = 701,119,770,146.73
  5. Step 5: Solve for x
    x = 701,119,770,146.73/1,191,211.68
  6. Step 6: Final answer
    x = 588,576.98

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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.