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Finding the Fourth Proportional to 483,545.63, 667,253.90 and 279,609.74

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Solution

The fourth proportional to 483,545.63, 667,253.90 and 279,609.74 is: 385,838.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,545.63 : 667,253.90 = 279,609.74 : x
  2. Step 2: Convert to fraction form
    483,545.63/667,253.90 = 279,609.74/x
  3. Step 3: Cross multiply
    483,545.63x = 667,253.90 × 279,609.74
  4. Step 4: Simplify right side
    483,545.63x = 186,570,689,357.94
  5. Step 5: Solve for x
    x = 186,570,689,357.94/483,545.63
  6. Step 6: Final answer
    x = 385,838.85

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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.