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Finding the Fourth Proportional to 483,947.04, 667,638 and 302,342.88

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Solution

The fourth proportional to 483,947.04, 667,638 and 302,342.88 is: 417,102.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,947.04 : 667,638 = 302,342.88 : x
  2. Step 2: Convert to fraction form
    483,947.04/667,638 = 302,342.88/x
  3. Step 3: Cross multiply
    483,947.04x = 667,638 × 302,342.88
  4. Step 4: Simplify right side
    483,947.04x = 201,855,595,717.44
  5. Step 5: Solve for x
    x = 201,855,595,717.44/483,947.04
  6. Step 6: Final answer
    x = 417,102.66

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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.