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Finding the Fourth Proportional to 472,190.73, 651,604.28 and 257,326.22

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Solution

The fourth proportional to 472,190.73, 651,604.28 and 257,326.22 is: 355,099.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,190.73 : 651,604.28 = 257,326.22 : x
  2. Step 2: Convert to fraction form
    472,190.73/651,604.28 = 257,326.22/x
  3. Step 3: Cross multiply
    472,190.73x = 651,604.28 × 257,326.22
  4. Step 4: Simplify right side
    472,190.73x = 167,674,861,763.57
  5. Step 5: Solve for x
    x = 167,674,861,763.57/472,190.73
  6. Step 6: Final answer
    x = 355,099.86

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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.