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Finding the Fourth Proportional to 289,049.40, 433,574.10 and 164,633.40

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Solution

The fourth proportional to 289,049.40, 433,574.10 and 164,633.40 is: 246,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,049.40 : 433,574.10 = 164,633.40 : x
  2. Step 2: Convert to fraction form
    289,049.40/433,574.10 = 164,633.40/x
  3. Step 3: Cross multiply
    289,049.40x = 433,574.10 × 164,633.40
  4. Step 4: Simplify right side
    289,049.40x = 71,380,778,234.94
  5. Step 5: Solve for x
    x = 71,380,778,234.94/289,049.40
  6. Step 6: Final answer
    x = 246,950.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.