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Finding the Fourth Proportional to 526,131.65, 789,314.42 and 245,495.81

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Solution

The fourth proportional to 526,131.65, 789,314.42 and 245,495.81 is: 368,298.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,131.65 : 789,314.42 = 245,495.81 : x
  2. Step 2: Convert to fraction form
    526,131.65/789,314.42 = 245,495.81/x
  3. Step 3: Cross multiply
    526,131.65x = 789,314.42 × 245,495.81
  4. Step 4: Simplify right side
    526,131.65x = 193,773,385,469.61
  5. Step 5: Solve for x
    x = 193,773,385,469.61/526,131.65
  6. Step 6: Final answer
    x = 368,298.29

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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.