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Finding the Fourth Proportional to 529,838.70, 731,196.63 and 303,527.94

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Solution

The fourth proportional to 529,838.70, 731,196.63 and 303,527.94 is: 418,879.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,838.70 : 731,196.63 = 303,527.94 : x
  2. Step 2: Convert to fraction form
    529,838.70/731,196.63 = 303,527.94/x
  3. Step 3: Cross multiply
    529,838.70x = 731,196.63 × 303,527.94
  4. Step 4: Simplify right side
    529,838.70x = 221,938,606,838.84
  5. Step 5: Solve for x
    x = 221,938,606,838.84/529,838.70
  6. Step 6: Final answer
    x = 418,879.57

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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.