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Finding the Fourth Proportional to 299,622.20, 449,627.70 and 173,262.20

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Solution

The fourth proportional to 299,622.20, 449,627.70 and 173,262.20 is: 260,005.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,622.20 : 449,627.70 = 173,262.20 : x
  2. Step 2: Convert to fraction form
    299,622.20/449,627.70 = 173,262.20/x
  3. Step 3: Cross multiply
    299,622.20x = 449,627.70 × 173,262.20
  4. Step 4: Simplify right side
    299,622.20x = 77,903,484,482.94
  5. Step 5: Solve for x
    x = 77,903,484,482.94/299,622.20
  6. Step 6: Final answer
    x = 260,005.72

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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.