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Finding the Fourth Proportional to 447,634.40, 671,451.60 and 181,403.60

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Solution

The fourth proportional to 447,634.40, 671,451.60 and 181,403.60 is: 272,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,634.40 : 671,451.60 = 181,403.60 : x
  2. Step 2: Convert to fraction form
    447,634.40/671,451.60 = 181,403.60/x
  3. Step 3: Cross multiply
    447,634.40x = 671,451.60 × 181,403.60
  4. Step 4: Simplify right side
    447,634.40x = 121,803,737,465.76
  5. Step 5: Solve for x
    x = 121,803,737,465.76/447,634.40
  6. Step 6: Final answer
    x = 272,105.40

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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.