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Finding the Fourth Proportional to 702,934.70, 970,054.49 and 380,644.81

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Solution

The fourth proportional to 702,934.70, 970,054.49 and 380,644.81 is: 525,292.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,934.70 : 970,054.49 = 380,644.81 : x
  2. Step 2: Convert to fraction form
    702,934.70/970,054.49 = 380,644.81/x
  3. Step 3: Cross multiply
    702,934.70x = 970,054.49 × 380,644.81
  4. Step 4: Simplify right side
    702,934.70x = 369,246,207,035.70
  5. Step 5: Solve for x
    x = 369,246,207,035.70/702,934.70
  6. Step 6: Final answer
    x = 525,292.33

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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.