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Finding the Fourth Proportional to 603,610.16, 905,555.26 and 177,128.76

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Solution

The fourth proportional to 603,610.16, 905,555.26 and 177,128.76 is: 265,734.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,610.16 : 905,555.26 = 177,128.76 : x
  2. Step 2: Convert to fraction form
    603,610.16/905,555.26 = 177,128.76/x
  3. Step 3: Cross multiply
    603,610.16x = 905,555.26 × 177,128.76
  4. Step 4: Simplify right side
    603,610.16x = 160,399,880,315.28
  5. Step 5: Solve for x
    x = 160,399,880,315.28/603,610.16
  6. Step 6: Final answer
    x = 265,734.23

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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.