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Finding the Fourth Proportional to 367,741.78, 506,310.53 and 313,810.36

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Solution

The fourth proportional to 367,741.78, 506,310.53 and 313,810.36 is: 432,057.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,741.78 : 506,310.53 = 313,810.36 : x
  2. Step 2: Convert to fraction form
    367,741.78/506,310.53 = 313,810.36/x
  3. Step 3: Cross multiply
    367,741.78x = 506,310.53 × 313,810.36
  4. Step 4: Simplify right side
    367,741.78x = 158,885,486,856.26
  5. Step 5: Solve for x
    x = 158,885,486,856.26/367,741.78
  6. Step 6: Final answer
    x = 432,057.21

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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.