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Finding the Fourth Proportional to 404,581.21, 558,319.33 and 223,293.14

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Solution

The fourth proportional to 404,581.21, 558,319.33 and 223,293.14 is: 308,143.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,581.21 : 558,319.33 = 223,293.14 : x
  2. Step 2: Convert to fraction form
    404,581.21/558,319.33 = 223,293.14/x
  3. Step 3: Cross multiply
    404,581.21x = 558,319.33 × 223,293.14
  4. Step 4: Simplify right side
    404,581.21x = 124,668,878,509.01
  5. Step 5: Solve for x
    x = 124,668,878,509.01/404,581.21
  6. Step 6: Final answer
    x = 308,143.02

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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.