Home / 939,632.07-1,296,693.09-509,912.19

Finding the Fourth Proportional to 939,632.07, 1,296,693.09 and 509,912.19

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Solution

The fourth proportional to 939,632.07, 1,296,693.09 and 509,912.19 is: 703,679.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,632.07 : 1,296,693.09 = 509,912.19 : x
  2. Step 2: Convert to fraction form
    939,632.07/1,296,693.09 = 509,912.19/x
  3. Step 3: Cross multiply
    939,632.07x = 1,296,693.09 × 509,912.19
  4. Step 4: Simplify right side
    939,632.07x = 661,199,613,279.77
  5. Step 5: Solve for x
    x = 661,199,613,279.77/939,632.07
  6. Step 6: Final answer
    x = 703,679.27

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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.