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Finding the Fourth Proportional to 404,632.95, 558,050.66 and 243,457.88

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Solution

The fourth proportional to 404,632.95, 558,050.66 and 243,457.88 is: 335,765.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,632.95 : 558,050.66 = 243,457.88 : x
  2. Step 2: Convert to fraction form
    404,632.95/558,050.66 = 243,457.88/x
  3. Step 3: Cross multiply
    404,632.95x = 558,050.66 × 243,457.88
  4. Step 4: Simplify right side
    404,632.95x = 135,861,830,794.04
  5. Step 5: Solve for x
    x = 135,861,830,794.04/404,632.95
  6. Step 6: Final answer
    x = 335,765.61

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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.