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Finding the Fourth Proportional to 402,937.01, 556,093.82 and 230,877.80

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Solution

The fourth proportional to 402,937.01, 556,093.82 and 230,877.80 is: 318,634.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,937.01 : 556,093.82 = 230,877.80 : x
  2. Step 2: Convert to fraction form
    402,937.01/556,093.82 = 230,877.80/x
  3. Step 3: Cross multiply
    402,937.01x = 556,093.82 × 230,877.80
  4. Step 4: Simplify right side
    402,937.01x = 128,389,717,755.20
  5. Step 5: Solve for x
    x = 128,389,717,755.20/402,937.01
  6. Step 6: Final answer
    x = 318,634.71

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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.