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Finding the Fourth Proportional to 463,271.30, 639,284.76 and 259,287.92

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Solution

The fourth proportional to 463,271.30, 639,284.76 and 259,287.92 is: 357,800.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,271.30 : 639,284.76 = 259,287.92 : x
  2. Step 2: Convert to fraction form
    463,271.30/639,284.76 = 259,287.92/x
  3. Step 3: Cross multiply
    463,271.30x = 639,284.76 × 259,287.92
  4. Step 4: Simplify right side
    463,271.30x = 165,758,812,511.68
  5. Step 5: Solve for x
    x = 165,758,812,511.68/463,271.30
  6. Step 6: Final answer
    x = 357,800.74

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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.