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Finding the Fourth Proportional to 702,693.25, 969,716.48 and 380,403.11

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Solution

The fourth proportional to 702,693.25, 969,716.48 and 380,403.11 is: 524,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,693.25 : 969,716.48 = 380,403.11 : x
  2. Step 2: Convert to fraction form
    702,693.25/969,716.48 = 380,403.11/x
  3. Step 3: Cross multiply
    702,693.25x = 969,716.48 × 380,403.11
  4. Step 4: Simplify right side
    702,693.25x = 368,883,168,185.55
  5. Step 5: Solve for x
    x = 368,883,168,185.55/702,693.25
  6. Step 6: Final answer
    x = 524,956.19

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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.