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Finding the Fourth Proportional to 424,781.68, 586,104.60 and 245,830

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Solution

The fourth proportional to 424,781.68, 586,104.60 and 245,830 is: 339,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,781.68 : 586,104.60 = 245,830 : x
  2. Step 2: Convert to fraction form
    424,781.68/586,104.60 = 245,830/x
  3. Step 3: Cross multiply
    424,781.68x = 586,104.60 × 245,830
  4. Step 4: Simplify right side
    424,781.68x = 144,082,093,818
  5. Step 5: Solve for x
    x = 144,082,093,818/424,781.68
  6. Step 6: Final answer
    x = 339,190.93

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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.