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Finding the Fourth Proportional to 603,974.01, 905,961.20 and 177,509.91

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Solution

The fourth proportional to 603,974.01, 905,961.20 and 177,509.91 is: 266,264.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,974.01 : 905,961.20 = 177,509.91 : x
  2. Step 2: Convert to fraction form
    603,974.01/905,961.20 = 177,509.91/x
  3. Step 3: Cross multiply
    603,974.01x = 905,961.20 × 177,509.91
  4. Step 4: Simplify right side
    603,974.01x = 160,817,087,657.41
  5. Step 5: Solve for x
    x = 160,817,087,657.41/603,974.01
  6. Step 6: Final answer
    x = 266,264.91

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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.