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Finding the Fourth Proportional to 590,930.59, 815,487.53 and 336,281.78

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Solution

The fourth proportional to 590,930.59, 815,487.53 and 336,281.78 is: 464,070.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,930.59 : 815,487.53 = 336,281.78 : x
  2. Step 2: Convert to fraction form
    590,930.59/815,487.53 = 336,281.78/x
  3. Step 3: Cross multiply
    590,930.59x = 815,487.53 × 336,281.78
  4. Step 4: Simplify right side
    590,930.59x = 274,233,597,236.67
  5. Step 5: Solve for x
    x = 274,233,597,236.67/590,930.59
  6. Step 6: Final answer
    x = 464,070.74

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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.