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Finding the Fourth Proportional to 542,462.40, 813,499.20 and 276,134.40

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Solution

The fourth proportional to 542,462.40, 813,499.20 and 276,134.40 is: 414,102.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,462.40 : 813,499.20 = 276,134.40 : x
  2. Step 2: Convert to fraction form
    542,462.40/813,499.20 = 276,134.40/x
  3. Step 3: Cross multiply
    542,462.40x = 813,499.20 × 276,134.40
  4. Step 4: Simplify right side
    542,462.40x = 224,635,113,492.48
  5. Step 5: Solve for x
    x = 224,635,113,492.48/542,462.40
  6. Step 6: Final answer
    x = 414,102.64

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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.