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Finding the Fourth Proportional to 404,632.81, 558,390.20 and 223,344.71

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Solution

The fourth proportional to 404,632.81, 558,390.20 and 223,344.71 is: 308,214.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,632.81 : 558,390.20 = 223,344.71 : x
  2. Step 2: Convert to fraction form
    404,632.81/558,390.20 = 223,344.71/x
  3. Step 3: Cross multiply
    404,632.81x = 558,390.20 × 223,344.71
  4. Step 4: Simplify right side
    404,632.81x = 124,713,495,052.25
  5. Step 5: Solve for x
    x = 124,713,495,052.25/404,632.81
  6. Step 6: Final answer
    x = 308,214.00

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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.