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Finding the Fourth Proportional to 304,072.48, 455,915.52 and 266,707.60

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Solution

The fourth proportional to 304,072.48, 455,915.52 and 266,707.60 is: 399,891.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,072.48 : 455,915.52 = 266,707.60 : x
  2. Step 2: Convert to fraction form
    304,072.48/455,915.52 = 266,707.60/x
  3. Step 3: Cross multiply
    304,072.48x = 455,915.52 × 266,707.60
  4. Step 4: Simplify right side
    304,072.48x = 121,596,134,141.95
  5. Step 5: Solve for x
    x = 121,596,134,141.95/304,072.48
  6. Step 6: Final answer
    x = 399,891.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.