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Finding the Fourth Proportional to 617,920.40, 927,658.20 and 333,837.20

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Solution

The fourth proportional to 617,920.40, 927,658.20 and 333,837.20 is: 501,175.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,920.40 : 927,658.20 = 333,837.20 : x
  2. Step 2: Convert to fraction form
    617,920.40/927,658.20 = 333,837.20/x
  3. Step 3: Cross multiply
    617,920.40x = 927,658.20 × 333,837.20
  4. Step 4: Simplify right side
    617,920.40x = 309,686,816,045.04
  5. Step 5: Solve for x
    x = 309,686,816,045.04/617,920.40
  6. Step 6: Final answer
    x = 501,175.91

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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.