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Finding the Fourth Proportional to 786,464, 1,085,012.24 and 484,133.12

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Solution

The fourth proportional to 786,464, 1,085,012.24 and 484,133.12 is: 667,914.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,464 : 1,085,012.24 = 484,133.12 : x
  2. Step 2: Convert to fraction form
    786,464/1,085,012.24 = 484,133.12/x
  3. Step 3: Cross multiply
    786,464x = 1,085,012.24 × 484,133.12
  4. Step 4: Simplify right side
    786,464x = 525,290,360,989.39
  5. Step 5: Solve for x
    x = 525,290,360,989.39/786,464
  6. Step 6: Final answer
    x = 667,914.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.