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Finding the Fourth Proportional to 454,415.09, 627,055.95 and 263,440.78

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Solution

The fourth proportional to 454,415.09, 627,055.95 and 263,440.78 is: 363,526.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,415.09 : 627,055.95 = 263,440.78 : x
  2. Step 2: Convert to fraction form
    454,415.09/627,055.95 = 263,440.78/x
  3. Step 3: Cross multiply
    454,415.09x = 627,055.95 × 263,440.78
  4. Step 4: Simplify right side
    454,415.09x = 165,192,108,571.64
  5. Step 5: Solve for x
    x = 165,192,108,571.64/454,415.09
  6. Step 6: Final answer
    x = 363,526.90

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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.