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Finding the Fourth Proportional to 610,568.54, 915,206.42 and 205,375.02

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Solution

The fourth proportional to 610,568.54, 915,206.42 and 205,375.02 is: 307,845.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,568.54 : 915,206.42 = 205,375.02 : x
  2. Step 2: Convert to fraction form
    610,568.54/915,206.42 = 205,375.02/x
  3. Step 3: Cross multiply
    610,568.54x = 915,206.42 × 205,375.02
  4. Step 4: Simplify right side
    610,568.54x = 187,960,537,325.07
  5. Step 5: Solve for x
    x = 187,960,537,325.07/610,568.54
  6. Step 6: Final answer
    x = 307,845.11

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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.