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Finding the Fourth Proportional to 483,152.84, 666,770.30 and 279,197

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Solution

The fourth proportional to 483,152.84, 666,770.30 and 279,197 is: 385,303.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,152.84 : 666,770.30 = 279,197 : x
  2. Step 2: Convert to fraction form
    483,152.84/666,770.30 = 279,197/x
  3. Step 3: Cross multiply
    483,152.84x = 666,770.30 × 279,197
  4. Step 4: Simplify right side
    483,152.84x = 186,160,267,449.10
  5. Step 5: Solve for x
    x = 186,160,267,449.10/483,152.84
  6. Step 6: Final answer
    x = 385,303.06

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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.