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Finding the Fourth Proportional to 328,266.40, 453,060.48 and 247,784.80

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Solution

The fourth proportional to 328,266.40, 453,060.48 and 247,784.80 is: 341,982.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,266.40 : 453,060.48 = 247,784.80 : x
  2. Step 2: Convert to fraction form
    328,266.40/453,060.48 = 247,784.80/x
  3. Step 3: Cross multiply
    328,266.40x = 453,060.48 × 247,784.80
  4. Step 4: Simplify right side
    328,266.40x = 112,261,500,424.70
  5. Step 5: Solve for x
    x = 112,261,500,424.70/328,266.40
  6. Step 6: Final answer
    x = 341,982.92

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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.