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Finding the Fourth Proportional to 404,901.56, 558,769.52 and 223,612.90

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Solution

The fourth proportional to 404,901.56, 558,769.52 and 223,612.90 is: 308,588.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,901.56 : 558,769.52 = 223,612.90 : x
  2. Step 2: Convert to fraction form
    404,901.56/558,769.52 = 223,612.90/x
  3. Step 3: Cross multiply
    404,901.56x = 558,769.52 × 223,612.90
  4. Step 4: Simplify right side
    404,901.56x = 124,948,072,798.81
  5. Step 5: Solve for x
    x = 124,948,072,798.81/404,901.56
  6. Step 6: Final answer
    x = 308,588.77

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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.