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Finding the Fourth Proportional to 468,042.30, 701,079.30 and 389,310.30

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Solution

The fourth proportional to 468,042.30, 701,079.30 and 389,310.30 is: 583,146.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,042.30 : 701,079.30 = 389,310.30 : x
  2. Step 2: Convert to fraction form
    468,042.30/701,079.30 = 389,310.30/x
  3. Step 3: Cross multiply
    468,042.30x = 701,079.30 × 389,310.30
  4. Step 4: Simplify right side
    468,042.30x = 272,937,392,606.79
  5. Step 5: Solve for x
    x = 272,937,392,606.79/468,042.30
  6. Step 6: Final answer
    x = 583,146.85

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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.