Home / 939,568.20-1,296,597.54-509,837.28

Finding the Fourth Proportional to 939,568.20, 1,296,597.54 and 509,837.28

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Solution

The fourth proportional to 939,568.20, 1,296,597.54 and 509,837.28 is: 703,571.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,568.20 : 1,296,597.54 = 509,837.28 : x
  2. Step 2: Convert to fraction form
    939,568.20/1,296,597.54 = 509,837.28/x
  3. Step 3: Cross multiply
    939,568.20x = 1,296,597.54 × 509,837.28
  4. Step 4: Simplify right side
    939,568.20x = 661,053,763,048.29
  5. Step 5: Solve for x
    x = 661,053,763,048.29/939,568.20
  6. Step 6: Final answer
    x = 703,571.88

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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.