Home / 1,291,013.40-1,936,450.01-392,385.07

Finding the Fourth Proportional to 1,291,013.40, 1,936,450.01 and 392,385.07

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Solution

The fourth proportional to 1,291,013.40, 1,936,450.01 and 392,385.07 is: 588,556.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,013.40 : 1,936,450.01 = 392,385.07 : x
  2. Step 2: Convert to fraction form
    1,291,013.40/1,936,450.01 = 392,385.07/x
  3. Step 3: Cross multiply
    1,291,013.40x = 1,936,450.01 × 392,385.07
  4. Step 4: Simplify right side
    1,291,013.40x = 759,834,068,473.44
  5. Step 5: Solve for x
    x = 759,834,068,473.44/1,291,013.40
  6. Step 6: Final answer
    x = 588,556.30

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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.