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Finding the Fourth Proportional to 542,554.89, 813,832.68 and 137,777.41

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Solution

The fourth proportional to 542,554.89, 813,832.68 and 137,777.41 is: 206,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,554.89 : 813,832.68 = 137,777.41 : x
  2. Step 2: Convert to fraction form
    542,554.89/813,832.68 = 137,777.41/x
  3. Step 3: Cross multiply
    542,554.89x = 813,832.68 × 137,777.41
  4. Step 4: Simplify right side
    542,554.89x = 112,127,759,912.76
  5. Step 5: Solve for x
    x = 112,127,759,912.76/542,554.89
  6. Step 6: Final answer
    x = 206,666.20

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1.5x scale

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.