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Finding the Fourth Proportional to 404,683.16, 558,462.86 and 223,395.21

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Solution

The fourth proportional to 404,683.16, 558,462.86 and 223,395.21 is: 308,285.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,683.16 : 558,462.86 = 223,395.21 : x
  2. Step 2: Convert to fraction form
    404,683.16/558,462.86 = 223,395.21/x
  3. Step 3: Cross multiply
    404,683.16x = 558,462.86 × 223,395.21
  4. Step 4: Simplify right side
    404,683.16x = 124,757,927,886.90
  5. Step 5: Solve for x
    x = 124,757,927,886.90/404,683.16
  6. Step 6: Final answer
    x = 308,285.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.