Home / 1,211,911.29-1,817,670.05-572,213.79

Finding the Fourth Proportional to 1,211,911.29, 1,817,670.05 and 572,213.79

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Solution

The fourth proportional to 1,211,911.29, 1,817,670.05 and 572,213.79 is: 858,227.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,911.29 : 1,817,670.05 = 572,213.79 : x
  2. Step 2: Convert to fraction form
    1,211,911.29/1,817,670.05 = 572,213.79/x
  3. Step 3: Cross multiply
    1,211,911.29x = 1,817,670.05 × 572,213.79
  4. Step 4: Simplify right side
    1,211,911.29x = 1,040,095,856,330.57
  5. Step 5: Solve for x
    x = 1,040,095,856,330.57/1,211,911.29
  6. Step 6: Final answer
    x = 858,227.72

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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.