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Finding the Fourth Proportional to 415,834.95, 573,859.70 and 243,876.94

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Solution

The fourth proportional to 415,834.95, 573,859.70 and 243,876.94 is: 336,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,834.95 : 573,859.70 = 243,876.94 : x
  2. Step 2: Convert to fraction form
    415,834.95/573,859.70 = 243,876.94/x
  3. Step 3: Cross multiply
    415,834.95x = 573,859.70 × 243,876.94
  4. Step 4: Simplify right side
    415,834.95x = 139,951,144,146.33
  5. Step 5: Solve for x
    x = 139,951,144,146.33/415,834.95
  6. Step 6: Final answer
    x = 336,554.55

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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.