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Finding the Fourth Proportional to 542,863.14, 813,913.20 and 239,113.14

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Solution

The fourth proportional to 542,863.14, 813,913.20 and 239,113.14 is: 358,501.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,863.14 : 813,913.20 = 239,113.14 : x
  2. Step 2: Convert to fraction form
    542,863.14/813,913.20 = 239,113.14/x
  3. Step 3: Cross multiply
    542,863.14x = 813,913.20 × 239,113.14
  4. Step 4: Simplify right side
    542,863.14x = 194,617,340,939.45
  5. Step 5: Solve for x
    x = 194,617,340,939.45/542,863.14
  6. Step 6: Final answer
    x = 358,501.67

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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.