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Finding the Fourth Proportional to 681,951, 941,092.44 and 380,145

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Solution

The fourth proportional to 681,951, 941,092.44 and 380,145 is: 524,600.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,951 : 941,092.44 = 380,145 : x
  2. Step 2: Convert to fraction form
    681,951/941,092.44 = 380,145/x
  3. Step 3: Cross multiply
    681,951x = 941,092.44 × 380,145
  4. Step 4: Simplify right side
    681,951x = 357,751,585,603.80
  5. Step 5: Solve for x
    x = 357,751,585,603.80/681,951
  6. Step 6: Final answer
    x = 524,600.13

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1.5x scale

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.