Home / 1,257,649.65-1,735,587.72-684,721.26

Finding the Fourth Proportional to 1,257,649.65, 1,735,587.72 and 684,721.26

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Solution

The fourth proportional to 1,257,649.65, 1,735,587.72 and 684,721.26 is: 944,932.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,649.65 : 1,735,587.72 = 684,721.26 : x
  2. Step 2: Convert to fraction form
    1,257,649.65/1,735,587.72 = 684,721.26/x
  3. Step 3: Cross multiply
    1,257,649.65x = 1,735,587.72 × 684,721.26
  4. Step 4: Simplify right side
    1,257,649.65x = 1,188,393,810,478.93
  5. Step 5: Solve for x
    x = 1,188,393,810,478.93/1,257,649.65
  6. Step 6: Final answer
    x = 944,932.33

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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.