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Finding the Fourth Proportional to 414,601.50, 621,877.53 and 243,919.11

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Solution

The fourth proportional to 414,601.50, 621,877.53 and 243,919.11 is: 365,864.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,601.50 : 621,877.53 = 243,919.11 : x
  2. Step 2: Convert to fraction form
    414,601.50/621,877.53 = 243,919.11/x
  3. Step 3: Cross multiply
    414,601.50x = 621,877.53 × 243,919.11
  4. Step 4: Simplify right side
    414,601.50x = 151,687,813,646.60
  5. Step 5: Solve for x
    x = 151,687,813,646.60/414,601.50
  6. Step 6: Final answer
    x = 365,864.12

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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.