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Finding the Fourth Proportional to 404,407.95, 558,084.92 and 223,119.87

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Solution

The fourth proportional to 404,407.95, 558,084.92 and 223,119.87 is: 307,906.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,407.95 : 558,084.92 = 223,119.87 : x
  2. Step 2: Convert to fraction form
    404,407.95/558,084.92 = 223,119.87/x
  3. Step 3: Cross multiply
    404,407.95x = 558,084.92 × 223,119.87
  4. Step 4: Simplify right side
    404,407.95x = 124,519,833,683.76
  5. Step 5: Solve for x
    x = 124,519,833,683.76/404,407.95
  6. Step 6: Final answer
    x = 307,906.49

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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.