Home / 1,291,063.65-1,936,525.33-392,435.34

Finding the Fourth Proportional to 1,291,063.65, 1,936,525.33 and 392,435.34

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Solution

The fourth proportional to 1,291,063.65, 1,936,525.33 and 392,435.34 is: 588,631.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,063.65 : 1,936,525.33 = 392,435.34 : x
  2. Step 2: Convert to fraction form
    1,291,063.65/1,936,525.33 = 392,435.34/x
  3. Step 3: Cross multiply
    1,291,063.65x = 1,936,525.33 × 392,435.34
  4. Step 4: Simplify right side
    1,291,063.65x = 759,960,976,297.16
  5. Step 5: Solve for x
    x = 759,960,976,297.16/1,291,063.65
  6. Step 6: Final answer
    x = 588,631.69

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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.