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Finding the Fourth Proportional to 404,901.65, 558,764.27 and 235,146.71

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Solution

The fourth proportional to 404,901.65, 558,764.27 and 235,146.71 is: 324,502.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,901.65 : 558,764.27 = 235,146.71 : x
  2. Step 2: Convert to fraction form
    404,901.65/558,764.27 = 235,146.71/x
  3. Step 3: Cross multiply
    404,901.65x = 558,764.27 × 235,146.71
  4. Step 4: Simplify right side
    404,901.65x = 131,391,579,756.05
  5. Step 5: Solve for x
    x = 131,391,579,756.05/404,901.65
  6. Step 6: Final answer
    x = 324,502.46

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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.