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Finding the Fourth Proportional to 421,337.59, 581,445.84 and 230,350.93

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Solution

The fourth proportional to 421,337.59, 581,445.84 and 230,350.93 is: 317,884.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,337.59 : 581,445.84 = 230,350.93 : x
  2. Step 2: Convert to fraction form
    421,337.59/581,445.84 = 230,350.93/x
  3. Step 3: Cross multiply
    421,337.59x = 581,445.84 × 230,350.93
  4. Step 4: Simplify right side
    421,337.59x = 133,936,589,988.63
  5. Step 5: Solve for x
    x = 133,936,589,988.63/421,337.59
  6. Step 6: Final answer
    x = 317,884.26

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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.