Home / 936,978.63-1,292,449.12-691,712.65

Finding the Fourth Proportional to 936,978.63, 1,292,449.12 and 691,712.65

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Solution

The fourth proportional to 936,978.63, 1,292,449.12 and 691,712.65 is: 954,134.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,978.63 : 1,292,449.12 = 691,712.65 : x
  2. Step 2: Convert to fraction form
    936,978.63/1,292,449.12 = 691,712.65/x
  3. Step 3: Cross multiply
    936,978.63x = 1,292,449.12 × 691,712.65
  4. Step 4: Simplify right side
    936,978.63x = 894,003,405,785.37
  5. Step 5: Solve for x
    x = 894,003,405,785.37/936,978.63
  6. Step 6: Final answer
    x = 954,134.25

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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.