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Finding the Fourth Proportional to 713,719, 984,932.22 and 395,767

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Solution

The fourth proportional to 713,719, 984,932.22 and 395,767 is: 546,158.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,719 : 984,932.22 = 395,767 : x
  2. Step 2: Convert to fraction form
    713,719/984,932.22 = 395,767/x
  3. Step 3: Cross multiply
    713,719x = 984,932.22 × 395,767
  4. Step 4: Simplify right side
    713,719x = 389,803,669,912.74
  5. Step 5: Solve for x
    x = 389,803,669,912.74/713,719
  6. Step 6: Final answer
    x = 546,158.46

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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.