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Finding the Fourth Proportional to 449,516.58, 620,355.03 and 255,928.13

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Solution

The fourth proportional to 449,516.58, 620,355.03 and 255,928.13 is: 353,193.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,516.58 : 620,355.03 = 255,928.13 : x
  2. Step 2: Convert to fraction form
    449,516.58/620,355.03 = 255,928.13/x
  3. Step 3: Cross multiply
    449,516.58x = 620,355.03 × 255,928.13
  4. Step 4: Simplify right side
    449,516.58x = 158,766,302,763.99
  5. Step 5: Solve for x
    x = 158,766,302,763.99/449,516.58
  6. Step 6: Final answer
    x = 353,193.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.