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Finding the Fourth Proportional to 328,389.64, 453,177.47 and 177,486.64

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Solution

The fourth proportional to 328,389.64, 453,177.47 and 177,486.64 is: 244,931.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,389.64 : 453,177.47 = 177,486.64 : x
  2. Step 2: Convert to fraction form
    328,389.64/453,177.47 = 177,486.64/x
  3. Step 3: Cross multiply
    328,389.64x = 453,177.47 × 177,486.64
  4. Step 4: Simplify right side
    328,389.64x = 80,432,945,784.77
  5. Step 5: Solve for x
    x = 80,432,945,784.77/328,389.64
  6. Step 6: Final answer
    x = 244,931.44

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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.