Home / 939,809.66-1,296,902.64-510,080.57

Finding the Fourth Proportional to 939,809.66, 1,296,902.64 and 510,080.57

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Solution

The fourth proportional to 939,809.66, 1,296,902.64 and 510,080.57 is: 703,892.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,809.66 : 1,296,902.64 = 510,080.57 : x
  2. Step 2: Convert to fraction form
    939,809.66/1,296,902.64 = 510,080.57/x
  3. Step 3: Cross multiply
    939,809.66x = 1,296,902.64 × 510,080.57
  4. Step 4: Simplify right side
    939,809.66x = 661,524,837,845.71
  5. Step 5: Solve for x
    x = 661,524,837,845.71/939,809.66
  6. Step 6: Final answer
    x = 703,892.36

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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.