Home / 939,684.32-1,296,773.84-509,968.16

Finding the Fourth Proportional to 939,684.32, 1,296,773.84 and 509,968.16

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Solution

The fourth proportional to 939,684.32, 1,296,773.84 and 509,968.16 is: 703,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,684.32 : 1,296,773.84 = 509,968.16 : x
  2. Step 2: Convert to fraction form
    939,684.32/1,296,773.84 = 509,968.16/x
  3. Step 3: Cross multiply
    939,684.32x = 1,296,773.84 × 509,968.16
  4. Step 4: Simplify right side
    939,684.32x = 661,313,369,120.94
  5. Step 5: Solve for x
    x = 661,313,369,120.94/939,684.32
  6. Step 6: Final answer
    x = 703,761.20

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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.