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Finding the Fourth Proportional to 616,804.80, 925,371.84 and 261,839.04

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Solution

The fourth proportional to 616,804.80, 925,371.84 and 261,839.04 is: 392,828.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,804.80 : 925,371.84 = 261,839.04 : x
  2. Step 2: Convert to fraction form
    616,804.80/925,371.84 = 261,839.04/x
  3. Step 3: Cross multiply
    616,804.80x = 925,371.84 × 261,839.04
  4. Step 4: Simplify right side
    616,804.80x = 242,298,474,228.63
  5. Step 5: Solve for x
    x = 242,298,474,228.63/616,804.80
  6. Step 6: Final answer
    x = 392,828.45

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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.