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Finding the Fourth Proportional to 328,428.56, 453,231.54 and 177,525.56

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Solution

The fourth proportional to 328,428.56, 453,231.54 and 177,525.56 is: 244,985.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,428.56 : 453,231.54 = 177,525.56 : x
  2. Step 2: Convert to fraction form
    328,428.56/453,231.54 = 177,525.56/x
  3. Step 3: Cross multiply
    328,428.56x = 453,231.54 × 177,525.56
  4. Step 4: Simplify right side
    328,428.56x = 80,460,182,948.16
  5. Step 5: Solve for x
    x = 80,460,182,948.16/328,428.56
  6. Step 6: Final answer
    x = 244,985.34

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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.