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Finding the Fourth Proportional to 411,549.67, 616,872.93 and 211,880.71

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Solution

The fourth proportional to 411,549.67, 616,872.93 and 211,880.71 is: 317,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,549.67 : 616,872.93 = 211,880.71 : x
  2. Step 2: Convert to fraction form
    411,549.67/616,872.93 = 211,880.71/x
  3. Step 3: Cross multiply
    411,549.67x = 616,872.93 × 211,880.71
  4. Step 4: Simplify right side
    411,549.67x = 130,703,474,388.18
  5. Step 5: Solve for x
    x = 130,703,474,388.18/411,549.67
  6. Step 6: Final answer
    x = 317,588.58

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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.