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Finding the Fourth Proportional to 463,497.50, 639,626.55 and 251,529.50

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Solution

The fourth proportional to 463,497.50, 639,626.55 and 251,529.50 is: 347,110.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,497.50 : 639,626.55 = 251,529.50 : x
  2. Step 2: Convert to fraction form
    463,497.50/639,626.55 = 251,529.50/x
  3. Step 3: Cross multiply
    463,497.50x = 639,626.55 × 251,529.50
  4. Step 4: Simplify right side
    463,497.50x = 160,884,946,308.23
  5. Step 5: Solve for x
    x = 160,884,946,308.23/463,497.50
  6. Step 6: Final answer
    x = 347,110.71

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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.