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Finding the Fourth Proportional to 446,715.60, 670,192.20 and 193,887.60

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Solution

The fourth proportional to 446,715.60, 670,192.20 and 193,887.60 is: 290,882.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,715.60 : 670,192.20 = 193,887.60 : x
  2. Step 2: Convert to fraction form
    446,715.60/670,192.20 = 193,887.60/x
  3. Step 3: Cross multiply
    446,715.60x = 670,192.20 × 193,887.60
  4. Step 4: Simplify right side
    446,715.60x = 129,941,957,196.72
  5. Step 5: Solve for x
    x = 129,941,957,196.72/446,715.60
  6. Step 6: Final answer
    x = 290,882.96

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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.