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Finding the Fourth Proportional to 519,773.23, 779,933.10 and 368,943.67

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Solution

The fourth proportional to 519,773.23, 779,933.10 and 368,943.67 is: 553,609.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,773.23 : 779,933.10 = 368,943.67 : x
  2. Step 2: Convert to fraction form
    519,773.23/779,933.10 = 368,943.67/x
  3. Step 3: Cross multiply
    519,773.23x = 779,933.10 × 368,943.67
  4. Step 4: Simplify right side
    519,773.23x = 287,751,380,268.48
  5. Step 5: Solve for x
    x = 287,751,380,268.48/519,773.23
  6. Step 6: Final answer
    x = 553,609.47

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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.