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Finding the Fourth Proportional to 328,576.36, 453,435.06 and 177,673

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Solution

The fourth proportional to 328,576.36, 453,435.06 and 177,673 is: 245,188.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,576.36 : 453,435.06 = 177,673 : x
  2. Step 2: Convert to fraction form
    328,576.36/453,435.06 = 177,673/x
  3. Step 3: Cross multiply
    328,576.36x = 453,435.06 × 177,673
  4. Step 4: Simplify right side
    328,576.36x = 80,563,167,415.38
  5. Step 5: Solve for x
    x = 80,563,167,415.38/328,576.36
  6. Step 6: Final answer
    x = 245,188.57

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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.