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Finding the Fourth Proportional to 362,409.80, 543,614.70 and 358,910.60

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Solution

The fourth proportional to 362,409.80, 543,614.70 and 358,910.60 is: 538,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,409.80 : 543,614.70 = 358,910.60 : x
  2. Step 2: Convert to fraction form
    362,409.80/543,614.70 = 358,910.60/x
  3. Step 3: Cross multiply
    362,409.80x = 543,614.70 × 358,910.60
  4. Step 4: Simplify right side
    362,409.80x = 195,109,078,145.82
  5. Step 5: Solve for x
    x = 195,109,078,145.82/362,409.80
  6. Step 6: Final answer
    x = 538,365.90

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1.5x scale

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.