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Finding the Fourth Proportional to 484,146.88, 667,653.60 and 323,008.48

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Solution

The fourth proportional to 484,146.88, 667,653.60 and 323,008.48 is: 445,438.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,146.88 : 667,653.60 = 323,008.48 : x
  2. Step 2: Convert to fraction form
    484,146.88/667,653.60 = 323,008.48/x
  3. Step 3: Cross multiply
    484,146.88x = 667,653.60 × 323,008.48
  4. Step 4: Simplify right side
    484,146.88x = 215,657,774,502.53
  5. Step 5: Solve for x
    x = 215,657,774,502.53/484,146.88
  6. Step 6: Final answer
    x = 445,438.74

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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.