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Finding the Fourth Proportional to 580,170.78, 800,670.96 and 386,243.82

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Solution

The fourth proportional to 580,170.78, 800,670.96 and 386,243.82 is: 533,039.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,170.78 : 800,670.96 = 386,243.82 : x
  2. Step 2: Convert to fraction form
    580,170.78/800,670.96 = 386,243.82/x
  3. Step 3: Cross multiply
    580,170.78x = 800,670.96 × 386,243.82
  4. Step 4: Simplify right side
    580,170.78x = 309,254,210,153.47
  5. Step 5: Solve for x
    x = 309,254,210,153.47/580,170.78
  6. Step 6: Final answer
    x = 533,039.96

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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.