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Finding the Fourth Proportional to 328,439.16, 453,245.70 and 177,536.16

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Solution

The fourth proportional to 328,439.16, 453,245.70 and 177,536.16 is: 244,999.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,439.16 : 453,245.70 = 177,536.16 : x
  2. Step 2: Convert to fraction form
    328,439.16/453,245.70 = 177,536.16/x
  3. Step 3: Cross multiply
    328,439.16x = 453,245.70 × 177,536.16
  4. Step 4: Simplify right side
    328,439.16x = 80,467,501,114.51
  5. Step 5: Solve for x
    x = 80,467,501,114.51/328,439.16
  6. Step 6: Final answer
    x = 244,999.72

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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.