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Finding the Fourth Proportional to 435,813.75, 601,455.78 and 266,080.68

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Solution

The fourth proportional to 435,813.75, 601,455.78 and 266,080.68 is: 367,211.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,813.75 : 601,455.78 = 266,080.68 : x
  2. Step 2: Convert to fraction form
    435,813.75/601,455.78 = 266,080.68/x
  3. Step 3: Cross multiply
    435,813.75x = 601,455.78 × 266,080.68
  4. Step 4: Simplify right side
    435,813.75x = 160,035,762,932.33
  5. Step 5: Solve for x
    x = 160,035,762,932.33/435,813.75
  6. Step 6: Final answer
    x = 367,211.37

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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.