Home / 1,383,516.34-1,909,255.16-771,708.73

Finding the Fourth Proportional to 1,383,516.34, 1,909,255.16 and 771,708.73

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Solution

The fourth proportional to 1,383,516.34, 1,909,255.16 and 771,708.73 is: 1,064,959.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,516.34 : 1,909,255.16 = 771,708.73 : x
  2. Step 2: Convert to fraction form
    1,383,516.34/1,909,255.16 = 771,708.73/x
  3. Step 3: Cross multiply
    1,383,516.34x = 1,909,255.16 × 771,708.73
  4. Step 4: Simplify right side
    1,383,516.34x = 1,473,388,874,769.55
  5. Step 5: Solve for x
    x = 1,473,388,874,769.55/1,383,516.34
  6. Step 6: Final answer
    x = 1,064,959.51

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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.