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Finding the Fourth Proportional to 404,376.49, 558,049.67 and 249,361.93

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Solution

The fourth proportional to 404,376.49, 558,049.67 and 249,361.93 is: 344,125.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,376.49 : 558,049.67 = 249,361.93 : x
  2. Step 2: Convert to fraction form
    404,376.49/558,049.67 = 249,361.93/x
  3. Step 3: Cross multiply
    404,376.49x = 558,049.67 × 249,361.93
  4. Step 4: Simplify right side
    404,376.49x = 139,156,342,747.06
  5. Step 5: Solve for x
    x = 139,156,342,747.06/404,376.49
  6. Step 6: Final answer
    x = 344,125.70

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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.