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Finding the Fourth Proportional to 376,725.60, 565,525.80 and 216,928.80

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Solution

The fourth proportional to 376,725.60, 565,525.80 and 216,928.80 is: 325,645.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,725.60 : 565,525.80 = 216,928.80 : x
  2. Step 2: Convert to fraction form
    376,725.60/565,525.80 = 216,928.80/x
  3. Step 3: Cross multiply
    376,725.60x = 565,525.80 × 216,928.80
  4. Step 4: Simplify right side
    376,725.60x = 122,678,833,163.04
  5. Step 5: Solve for x
    x = 122,678,833,163.04/376,725.60
  6. Step 6: Final answer
    x = 325,645.07

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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.