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Finding the Fourth Proportional to 424,474.63, 585,858.15 and 243,307.87

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Solution

The fourth proportional to 424,474.63, 585,858.15 and 243,307.87 is: 335,812.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,474.63 : 585,858.15 = 243,307.87 : x
  2. Step 2: Convert to fraction form
    424,474.63/585,858.15 = 243,307.87/x
  3. Step 3: Cross multiply
    424,474.63x = 585,858.15 × 243,307.87
  4. Step 4: Simplify right side
    424,474.63x = 142,543,897,134.00
  5. Step 5: Solve for x
    x = 142,543,897,134.00/424,474.63
  6. Step 6: Final answer
    x = 335,812.53

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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.