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Finding the Fourth Proportional to 702,994.25, 970,126.99 and 380,696.87

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Solution

The fourth proportional to 702,994.25, 970,126.99 and 380,696.87 is: 525,358.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,994.25 : 970,126.99 = 380,696.87 : x
  2. Step 2: Convert to fraction form
    702,994.25/970,126.99 = 380,696.87/x
  3. Step 3: Cross multiply
    702,994.25x = 970,126.99 × 380,696.87
  4. Step 4: Simplify right side
    702,994.25x = 369,324,302,793.14
  5. Step 5: Solve for x
    x = 369,324,302,793.14/702,994.25
  6. Step 6: Final answer
    x = 525,358.93

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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.