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Finding the Fourth Proportional to 463,388.57, 639,327.52 and 259,409.45

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Solution

The fourth proportional to 463,388.57, 639,327.52 and 259,409.45 is: 357,901.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,388.57 : 639,327.52 = 259,409.45 : x
  2. Step 2: Convert to fraction form
    463,388.57/639,327.52 = 259,409.45/x
  3. Step 3: Cross multiply
    463,388.57x = 639,327.52 × 259,409.45
  4. Step 4: Simplify right side
    463,388.57x = 165,847,600,333.06
  5. Step 5: Solve for x
    x = 165,847,600,333.06/463,388.57
  6. Step 6: Final answer
    x = 357,901.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.