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Finding the Fourth Proportional to 404,078.88, 557,620.08 and 234,328.80

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Solution

The fourth proportional to 404,078.88, 557,620.08 and 234,328.80 is: 323,368.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,078.88 : 557,620.08 = 234,328.80 : x
  2. Step 2: Convert to fraction form
    404,078.88/557,620.08 = 234,328.80/x
  3. Step 3: Cross multiply
    404,078.88x = 557,620.08 × 234,328.80
  4. Step 4: Simplify right side
    404,078.88x = 130,666,444,202.30
  5. Step 5: Solve for x
    x = 130,666,444,202.30/404,078.88
  6. Step 6: Final answer
    x = 323,368.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.