Home / 428,548.09-591,356.60-237,545.23

Finding the Fourth Proportional to 428,548.09, 591,356.60 and 237,545.23

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Solution

The fourth proportional to 428,548.09, 591,356.60 and 237,545.23 is: 327,790.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,548.09 : 591,356.60 = 237,545.23 : x
  2. Step 2: Convert to fraction form
    428,548.09/591,356.60 = 237,545.23/x
  3. Step 3: Cross multiply
    428,548.09x = 591,356.60 × 237,545.23
  4. Step 4: Simplify right side
    428,548.09x = 140,473,935,414.51
  5. Step 5: Solve for x
    x = 140,473,935,414.51/428,548.09
  6. Step 6: Final answer
    x = 327,790.37

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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.