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Finding the Fourth Proportional to 509,268.37, 763,154.87 and 256,201.03

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Solution

The fourth proportional to 509,268.37, 763,154.87 and 256,201.03 is: 383,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,268.37 : 763,154.87 = 256,201.03 : x
  2. Step 2: Convert to fraction form
    509,268.37/763,154.87 = 256,201.03/x
  3. Step 3: Cross multiply
    509,268.37x = 763,154.87 × 256,201.03
  4. Step 4: Simplify right side
    509,268.37x = 195,521,063,103.01
  5. Step 5: Solve for x
    x = 195,521,063,103.01/509,268.37
  6. Step 6: Final answer
    x = 383,925.40

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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.