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Finding the Fourth Proportional to 328,403.90, 453,197.15 and 177,500.90

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Solution

The fourth proportional to 328,403.90, 453,197.15 and 177,500.90 is: 244,951.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,403.90 : 453,197.15 = 177,500.90 : x
  2. Step 2: Convert to fraction form
    328,403.90/453,197.15 = 177,500.90/x
  3. Step 3: Cross multiply
    328,403.90x = 453,197.15 × 177,500.90
  4. Step 4: Simplify right side
    328,403.90x = 80,442,898,848.94
  5. Step 5: Solve for x
    x = 80,442,898,848.94/328,403.90
  6. Step 6: Final answer
    x = 244,951.11

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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.