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Finding the Fourth Proportional to 580,171.78, 800,672.34 and 386,244.82

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Solution

The fourth proportional to 580,171.78, 800,672.34 and 386,244.82 is: 533,041.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,171.78 : 800,672.34 = 386,244.82 : x
  2. Step 2: Convert to fraction form
    580,171.78/800,672.34 = 386,244.82/x
  3. Step 3: Cross multiply
    580,171.78x = 800,672.34 × 386,244.82
  4. Step 4: Simplify right side
    580,171.78x = 309,255,543,842.28
  5. Step 5: Solve for x
    x = 309,255,543,842.28/580,171.78
  6. Step 6: Final answer
    x = 533,041.34

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1.5x scale

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.