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Finding the Fourth Proportional to 463,271.05, 639,284.42 and 259,287.67

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Solution

The fourth proportional to 463,271.05, 639,284.42 and 259,287.67 is: 357,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,271.05 : 639,284.42 = 259,287.67 : x
  2. Step 2: Convert to fraction form
    463,271.05/639,284.42 = 259,287.67/x
  3. Step 3: Cross multiply
    463,271.05x = 639,284.42 × 259,287.67
  4. Step 4: Simplify right side
    463,271.05x = 165,758,563,236.24
  5. Step 5: Solve for x
    x = 165,758,563,236.24/463,271.05
  6. Step 6: Final answer
    x = 357,800.40

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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.