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Finding the Fourth Proportional to 328,421.48, 453,222.29 and 177,518.48

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Solution

The fourth proportional to 328,421.48, 453,222.29 and 177,518.48 is: 244,975.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,421.48 : 453,222.29 = 177,518.48 : x
  2. Step 2: Convert to fraction form
    328,421.48/453,222.29 = 177,518.48/x
  3. Step 3: Cross multiply
    328,421.48x = 453,222.29 × 177,518.48
  4. Step 4: Simplify right side
    328,421.48x = 80,455,328,869.22
  5. Step 5: Solve for x
    x = 80,455,328,869.22/328,421.48
  6. Step 6: Final answer
    x = 244,975.85

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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.