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Finding the Fourth Proportional to 468,847.50, 647,008.90 and 253,988.43

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Solution

The fourth proportional to 468,847.50, 647,008.90 and 253,988.43 is: 350,503.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,847.50 : 647,008.90 = 253,988.43 : x
  2. Step 2: Convert to fraction form
    468,847.50/647,008.90 = 253,988.43/x
  3. Step 3: Cross multiply
    468,847.50x = 647,008.90 × 253,988.43
  4. Step 4: Simplify right side
    468,847.50x = 164,332,774,707.03
  5. Step 5: Solve for x
    x = 164,332,774,707.03/468,847.50
  6. Step 6: Final answer
    x = 350,503.68

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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.