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Finding the Fourth Proportional to 472,049.99, 651,436.46 and 257,190.00

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Solution

The fourth proportional to 472,049.99, 651,436.46 and 257,190.00 is: 354,926.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,049.99 : 651,436.46 = 257,190.00 : x
  2. Step 2: Convert to fraction form
    472,049.99/651,436.46 = 257,190.00/x
  3. Step 3: Cross multiply
    472,049.99x = 651,436.46 × 257,190.00
  4. Step 4: Simplify right side
    472,049.99x = 167,542,938,604.27
  5. Step 5: Solve for x
    x = 167,542,938,604.27/472,049.99
  6. Step 6: Final answer
    x = 354,926.26

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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.