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Finding the Fourth Proportional to 702,964.07, 970,090.94 and 380,674.52

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Solution

The fourth proportional to 702,964.07, 970,090.94 and 380,674.52 is: 525,331.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,964.07 : 970,090.94 = 380,674.52 : x
  2. Step 2: Convert to fraction form
    702,964.07/970,090.94 = 380,674.52/x
  3. Step 3: Cross multiply
    702,964.07x = 970,090.94 × 380,674.52
  4. Step 4: Simplify right side
    702,964.07x = 369,288,902,940.85
  5. Step 5: Solve for x
    x = 369,288,902,940.85/702,964.07
  6. Step 6: Final answer
    x = 525,331.12

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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.