Home / 939,715.26-1,296,816.75-509,999.10

Finding the Fourth Proportional to 939,715.26, 1,296,816.75 and 509,999.10

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Solution

The fourth proportional to 939,715.26, 1,296,816.75 and 509,999.10 is: 703,804.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,715.26 : 1,296,816.75 = 509,999.10 : x
  2. Step 2: Convert to fraction form
    939,715.26/1,296,816.75 = 509,999.10/x
  3. Step 3: Cross multiply
    939,715.26x = 1,296,816.75 × 509,999.10
  4. Step 4: Simplify right side
    939,715.26x = 661,375,375,364.93
  5. Step 5: Solve for x
    x = 661,375,375,364.93/939,715.26
  6. Step 6: Final answer
    x = 703,804.02

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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.