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Finding the Fourth Proportional to 491,097.28, 677,134.56 and 336,123.32

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Solution

The fourth proportional to 491,097.28, 677,134.56 and 336,123.32 is: 463,453.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,097.28 : 677,134.56 = 336,123.32 : x
  2. Step 2: Convert to fraction form
    491,097.28/677,134.56 = 336,123.32/x
  3. Step 3: Cross multiply
    491,097.28x = 677,134.56 × 336,123.32
  4. Step 4: Simplify right side
    491,097.28x = 227,600,716,393.94
  5. Step 5: Solve for x
    x = 227,600,716,393.94/491,097.28
  6. Step 6: Final answer
    x = 463,453.42

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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.