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Finding the Fourth Proportional to 449,576.65, 669,594.74 and 447,403.83

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Solution

The fourth proportional to 449,576.65, 669,594.74 and 447,403.83 is: 666,358.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,576.65 : 669,594.74 = 447,403.83 : x
  2. Step 2: Convert to fraction form
    449,576.65/669,594.74 = 447,403.83/x
  3. Step 3: Cross multiply
    449,576.65x = 669,594.74 × 447,403.83
  4. Step 4: Simplify right side
    449,576.65x = 299,579,251,223.85
  5. Step 5: Solve for x
    x = 299,579,251,223.85/449,576.65
  6. Step 6: Final answer
    x = 666,358.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.