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Finding the Fourth Proportional to 463,316.84, 639,323.30 and 259,378.92

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Solution

The fourth proportional to 463,316.84, 639,323.30 and 259,378.92 is: 357,912.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,316.84 : 639,323.30 = 259,378.92 : x
  2. Step 2: Convert to fraction form
    463,316.84/639,323.30 = 259,378.92/x
  3. Step 3: Cross multiply
    463,316.84x = 639,323.30 × 259,378.92
  4. Step 4: Simplify right side
    463,316.84x = 165,826,987,084.84
  5. Step 5: Solve for x
    x = 165,826,987,084.84/463,316.84
  6. Step 6: Final answer
    x = 357,912.71

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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.