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Finding the Fourth Proportional to 328,447.58, 453,257.78 and 177,544.58

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Solution

The fourth proportional to 328,447.58, 453,257.78 and 177,544.58 is: 245,011.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,447.58 : 453,257.78 = 177,544.58 : x
  2. Step 2: Convert to fraction form
    328,447.58/453,257.78 = 177,544.58/x
  3. Step 3: Cross multiply
    328,447.58x = 453,257.78 × 177,544.58
  4. Step 4: Simplify right side
    328,447.58x = 80,473,459,027.82
  5. Step 5: Solve for x
    x = 80,473,459,027.82/328,447.58
  6. Step 6: Final answer
    x = 245,011.58

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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.