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Finding the Fourth Proportional to 404,907.75, 558,772.74 and 235,152.81

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Solution

The fourth proportional to 404,907.75, 558,772.74 and 235,152.81 is: 324,510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,907.75 : 558,772.74 = 235,152.81 : x
  2. Step 2: Convert to fraction form
    404,907.75/558,772.74 = 235,152.81/x
  3. Step 3: Cross multiply
    404,907.75x = 558,772.74 × 235,152.81
  4. Step 4: Simplify right side
    404,907.75x = 131,396,979,962.40
  5. Step 5: Solve for x
    x = 131,396,979,962.40/404,907.75
  6. Step 6: Final answer
    x = 324,510.90

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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.