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Finding the Fourth Proportional to 404,505.70, 558,328.89 and 234,794.50

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Solution

The fourth proportional to 404,505.70, 558,328.89 and 234,794.50 is: 324,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,505.70 : 558,328.89 = 234,794.50 : x
  2. Step 2: Convert to fraction form
    404,505.70/558,328.89 = 234,794.50/x
  3. Step 3: Cross multiply
    404,505.70x = 558,328.89 × 234,794.50
  4. Step 4: Simplify right side
    404,505.70x = 131,092,552,563.11
  5. Step 5: Solve for x
    x = 131,092,552,563.11/404,505.70
  6. Step 6: Final answer
    x = 324,080.85

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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.