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Finding the Fourth Proportional to 575,715.69, 863,146.98 and 275,910.75

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Solution

The fourth proportional to 575,715.69, 863,146.98 and 275,910.75 is: 413,661.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,715.69 : 863,146.98 = 275,910.75 : x
  2. Step 2: Convert to fraction form
    575,715.69/863,146.98 = 275,910.75/x
  3. Step 3: Cross multiply
    575,715.69x = 863,146.98 × 275,910.75
  4. Step 4: Simplify right side
    575,715.69x = 238,151,530,612.04
  5. Step 5: Solve for x
    x = 238,151,530,612.04/575,715.69
  6. Step 6: Final answer
    x = 413,661.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.