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Finding the Fourth Proportional to 427,999.31, 590,638.52 and 237,012.47

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Solution

The fourth proportional to 427,999.31, 590,638.52 and 237,012.47 is: 327,076.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,999.31 : 590,638.52 = 237,012.47 : x
  2. Step 2: Convert to fraction form
    427,999.31/590,638.52 = 237,012.47/x
  3. Step 3: Cross multiply
    427,999.31x = 590,638.52 × 237,012.47
  4. Step 4: Simplify right side
    427,999.31x = 139,988,693,317.28
  5. Step 5: Solve for x
    x = 139,988,693,317.28/427,999.31
  6. Step 6: Final answer
    x = 327,076.91

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1.5x scale

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.