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Finding the Fourth Proportional to 404,707.26, 558,492.88 and 223,419.43

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Solution

The fourth proportional to 404,707.26, 558,492.88 and 223,419.43 is: 308,317.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,707.26 : 558,492.88 = 223,419.43 : x
  2. Step 2: Convert to fraction form
    404,707.26/558,492.88 = 223,419.43/x
  3. Step 3: Cross multiply
    404,707.26x = 558,492.88 × 223,419.43
  4. Step 4: Simplify right side
    404,707.26x = 124,778,160,908.66
  5. Step 5: Solve for x
    x = 124,778,160,908.66/404,707.26
  6. Step 6: Final answer
    x = 308,317.08

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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.