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Finding the Fourth Proportional to 542,543.70, 813,892.35 and 168,527.70

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Solution

The fourth proportional to 542,543.70, 813,892.35 and 168,527.70 is: 252,815.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,543.70 : 813,892.35 = 168,527.70 : x
  2. Step 2: Convert to fraction form
    542,543.70/813,892.35 = 168,527.70/x
  3. Step 3: Cross multiply
    542,543.70x = 813,892.35 × 168,527.70
  4. Step 4: Simplify right side
    542,543.70x = 137,163,405,793.10
  5. Step 5: Solve for x
    x = 137,163,405,793.10/542,543.70
  6. Step 6: Final answer
    x = 252,815.41

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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.