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Finding the Fourth Proportional to 542,993.90, 814,486.80 and 163,913.90

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Solution

The fourth proportional to 542,993.90, 814,486.80 and 163,913.90 is: 245,869.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,993.90 : 814,486.80 = 163,913.90 : x
  2. Step 2: Convert to fraction form
    542,993.90/814,486.80 = 163,913.90/x
  3. Step 3: Cross multiply
    542,993.90x = 814,486.80 × 163,913.90
  4. Step 4: Simplify right side
    542,993.90x = 133,505,707,886.52
  5. Step 5: Solve for x
    x = 133,505,707,886.52/542,993.90
  6. Step 6: Final answer
    x = 245,869.63

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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.