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Finding the Fourth Proportional to 367,428.96, 550,673.64 and 319,849.56

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Solution

The fourth proportional to 367,428.96, 550,673.64 and 319,849.56 is: 479,365.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,428.96 : 550,673.64 = 319,849.56 : x
  2. Step 2: Convert to fraction form
    367,428.96/550,673.64 = 319,849.56/x
  3. Step 3: Cross multiply
    367,428.96x = 550,673.64 × 319,849.56
  4. Step 4: Simplify right side
    367,428.96x = 176,132,721,457.60
  5. Step 5: Solve for x
    x = 176,132,721,457.60/367,428.96
  6. Step 6: Final answer
    x = 479,365.38

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1.5x scale

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.