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Finding the Fourth Proportional to 691,993.22, 954,978.32 and 386,096.33

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Solution

The fourth proportional to 691,993.22, 954,978.32 and 386,096.33 is: 532,828.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,993.22 : 954,978.32 = 386,096.33 : x
  2. Step 2: Convert to fraction form
    691,993.22/954,978.32 = 386,096.33/x
  3. Step 3: Cross multiply
    691,993.22x = 954,978.32 × 386,096.33
  4. Step 4: Simplify right side
    691,993.22x = 368,713,624,581.57
  5. Step 5: Solve for x
    x = 368,713,624,581.57/691,993.22
  6. Step 6: Final answer
    x = 532,828.38

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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.