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Finding the Fourth Proportional to 422,577.46, 633,637.23 and 185,642.74

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Solution

The fourth proportional to 422,577.46, 633,637.23 and 185,642.74 is: 278,363.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,577.46 : 633,637.23 = 185,642.74 : x
  2. Step 2: Convert to fraction form
    422,577.46/633,637.23 = 185,642.74/x
  3. Step 3: Cross multiply
    422,577.46x = 633,637.23 × 185,642.74
  4. Step 4: Simplify right side
    422,577.46x = 117,630,151,543.21
  5. Step 5: Solve for x
    x = 117,630,151,543.21/422,577.46
  6. Step 6: Final answer
    x = 278,363.53

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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.