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Finding the Fourth Proportional to 483,298.92, 666,878.31 and 279,310.41

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Solution

The fourth proportional to 483,298.92, 666,878.31 and 279,310.41 is: 385,405.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,298.92 : 666,878.31 = 279,310.41 : x
  2. Step 2: Convert to fraction form
    483,298.92/666,878.31 = 279,310.41/x
  3. Step 3: Cross multiply
    483,298.92x = 666,878.31 × 279,310.41
  4. Step 4: Simplify right side
    483,298.92x = 186,266,054,186.21
  5. Step 5: Solve for x
    x = 186,266,054,186.21/483,298.92
  6. Step 6: Final answer
    x = 385,405.48

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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.