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Finding the Fourth Proportional to 424,999.78, 586,512.60 and 234,020.00

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Solution

The fourth proportional to 424,999.78, 586,512.60 and 234,020.00 is: 322,954.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,999.78 : 586,512.60 = 234,020.00 : x
  2. Step 2: Convert to fraction form
    424,999.78/586,512.60 = 234,020.00/x
  3. Step 3: Cross multiply
    424,999.78x = 586,512.60 × 234,020.00
  4. Step 4: Simplify right side
    424,999.78x = 137,255,679,240.71
  5. Step 5: Solve for x
    x = 137,255,679,240.71/424,999.78
  6. Step 6: Final answer
    x = 322,954.71

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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.