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Finding the Fourth Proportional to 297,220.34, 445,144.17 and 178,630.40

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Solution

The fourth proportional to 297,220.34, 445,144.17 and 178,630.40 is: 267,533.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,220.34 : 445,144.17 = 178,630.40 : x
  2. Step 2: Convert to fraction form
    297,220.34/445,144.17 = 178,630.40/x
  3. Step 3: Cross multiply
    297,220.34x = 445,144.17 × 178,630.40
  4. Step 4: Simplify right side
    297,220.34x = 79,516,281,144.77
  5. Step 5: Solve for x
    x = 79,516,281,144.77/297,220.34
  6. Step 6: Final answer
    x = 267,533.11

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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.