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Finding the Fourth Proportional to 262,066.40, 392,516.40 and 256,234.40

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Solution

The fourth proportional to 262,066.40, 392,516.40 and 256,234.40 is: 383,781.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,066.40 : 392,516.40 = 256,234.40 : x
  2. Step 2: Convert to fraction form
    262,066.40/392,516.40 = 256,234.40/x
  3. Step 3: Cross multiply
    262,066.40x = 392,516.40 × 256,234.40
  4. Step 4: Simplify right side
    262,066.40x = 100,576,204,244.16
  5. Step 5: Solve for x
    x = 100,576,204,244.16/262,066.40
  6. Step 6: Final answer
    x = 383,781.38

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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.