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Finding the Fourth Proportional to 719,992.88, 984,955.42 and 716,960.24

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Solution

The fourth proportional to 719,992.88, 984,955.42 and 716,960.24 is: 980,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,992.88 : 984,955.42 = 716,960.24 : x
  2. Step 2: Convert to fraction form
    719,992.88/984,955.42 = 716,960.24/x
  3. Step 3: Cross multiply
    719,992.88x = 984,955.42 × 716,960.24
  4. Step 4: Simplify right side
    719,992.88x = 706,173,874,312.50
  5. Step 5: Solve for x
    x = 706,173,874,312.50/719,992.88
  6. Step 6: Final answer
    x = 980,806.75

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.