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Finding the Fourth Proportional to 676,634.50, 933,755.61 and 404,713.86

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Solution

The fourth proportional to 676,634.50, 933,755.61 and 404,713.86 is: 558,505.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,634.50 : 933,755.61 = 404,713.86 : x
  2. Step 2: Convert to fraction form
    676,634.50/933,755.61 = 404,713.86/x
  3. Step 3: Cross multiply
    676,634.50x = 933,755.61 × 404,713.86
  4. Step 4: Simplify right side
    676,634.50x = 377,903,837,219.76
  5. Step 5: Solve for x
    x = 377,903,837,219.76/676,634.50
  6. Step 6: Final answer
    x = 558,505.13

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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.