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Finding the Fourth Proportional to 622,447.30, 933,690.15 and 243,352.90

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Solution

The fourth proportional to 622,447.30, 933,690.15 and 243,352.90 is: 365,036.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,447.30 : 933,690.15 = 243,352.90 : x
  2. Step 2: Convert to fraction form
    622,447.30/933,690.15 = 243,352.90/x
  3. Step 3: Cross multiply
    622,447.30x = 933,690.15 × 243,352.90
  4. Step 4: Simplify right side
    622,447.30x = 227,216,205,703.94
  5. Step 5: Solve for x
    x = 227,216,205,703.94/622,447.30
  6. Step 6: Final answer
    x = 365,036.86

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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.