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Finding the Fourth Proportional to 404,821.80, 607,232.70 and 236,860.20

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Solution

The fourth proportional to 404,821.80, 607,232.70 and 236,860.20 is: 355,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,821.80 : 607,232.70 = 236,860.20 : x
  2. Step 2: Convert to fraction form
    404,821.80/607,232.70 = 236,860.20/x
  3. Step 3: Cross multiply
    404,821.80x = 607,232.70 × 236,860.20
  4. Step 4: Simplify right side
    404,821.80x = 143,829,258,768.54
  5. Step 5: Solve for x
    x = 143,829,258,768.54/404,821.80
  6. Step 6: Final answer
    x = 355,290.30

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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.