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Finding the Fourth Proportional to 407,644.32, 608,721.46 and 332,912.80

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Solution

The fourth proportional to 407,644.32, 608,721.46 and 332,912.80 is: 497,127.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,644.32 : 608,721.46 = 332,912.80 : x
  2. Step 2: Convert to fraction form
    407,644.32/608,721.46 = 332,912.80/x
  3. Step 3: Cross multiply
    407,644.32x = 608,721.46 × 332,912.80
  4. Step 4: Simplify right side
    407,644.32x = 202,651,165,668.69
  5. Step 5: Solve for x
    x = 202,651,165,668.69/407,644.32
  6. Step 6: Final answer
    x = 497,127.41

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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.