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Finding the Fourth Proportional to 542,469.40, 813,509.70 and 276,141.40

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Solution

The fourth proportional to 542,469.40, 813,509.70 and 276,141.40 is: 414,113.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,469.40 : 813,509.70 = 276,141.40 : x
  2. Step 2: Convert to fraction form
    542,469.40/813,509.70 = 276,141.40/x
  3. Step 3: Cross multiply
    542,469.40x = 813,509.70 × 276,141.40
  4. Step 4: Simplify right side
    542,469.40x = 224,643,707,471.58
  5. Step 5: Solve for x
    x = 224,643,707,471.58/542,469.40
  6. Step 6: Final answer
    x = 414,113.14

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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.