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Finding the Fourth Proportional to 298,052.40, 447,136.20 and 150,308.40

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Solution

The fourth proportional to 298,052.40, 447,136.20 and 150,308.40 is: 225,491.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,052.40 : 447,136.20 = 150,308.40 : x
  2. Step 2: Convert to fraction form
    298,052.40/447,136.20 = 150,308.40/x
  3. Step 3: Cross multiply
    298,052.40x = 447,136.20 × 150,308.40
  4. Step 4: Simplify right side
    298,052.40x = 67,208,326,804.08
  5. Step 5: Solve for x
    x = 67,208,326,804.08/298,052.40
  6. Step 6: Final answer
    x = 225,491.65

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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.