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Finding the Fourth Proportional to 610,265.50, 915,398.43 and 189,541.42

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Solution

The fourth proportional to 610,265.50, 915,398.43 and 189,541.42 is: 284,312.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,265.50 : 915,398.43 = 189,541.42 : x
  2. Step 2: Convert to fraction form
    610,265.50/915,398.43 = 189,541.42/x
  3. Step 3: Cross multiply
    610,265.50x = 915,398.43 × 189,541.42
  4. Step 4: Simplify right side
    610,265.50x = 173,505,918,287.97
  5. Step 5: Solve for x
    x = 173,505,918,287.97/610,265.50
  6. Step 6: Final answer
    x = 284,312.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.