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Finding the Fourth Proportional to 569,675.70, 786,151.08 and 327,870

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Solution

The fourth proportional to 569,675.70, 786,151.08 and 327,870 is: 452,459.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,675.70 : 786,151.08 = 327,870 : x
  2. Step 2: Convert to fraction form
    569,675.70/786,151.08 = 327,870/x
  3. Step 3: Cross multiply
    569,675.70x = 786,151.08 × 327,870
  4. Step 4: Simplify right side
    569,675.70x = 257,755,354,599.60
  5. Step 5: Solve for x
    x = 257,755,354,599.60/569,675.70
  6. Step 6: Final answer
    x = 452,459.80

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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.