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Finding the Fourth Proportional to 488,041.86, 673,504.65 and 281,195.94

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Solution

The fourth proportional to 488,041.86, 673,504.65 and 281,195.94 is: 388,054.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,041.86 : 673,504.65 = 281,195.94 : x
  2. Step 2: Convert to fraction form
    488,041.86/673,504.65 = 281,195.94/x
  3. Step 3: Cross multiply
    488,041.86x = 673,504.65 × 281,195.94
  4. Step 4: Simplify right side
    488,041.86x = 189,386,773,151.12
  5. Step 5: Solve for x
    x = 189,386,773,151.12/488,041.86
  6. Step 6: Final answer
    x = 388,054.36

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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.