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Finding the Fourth Proportional to 626,635.50, 939,906.76 and 200,154.10

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Solution

The fourth proportional to 626,635.50, 939,906.76 and 200,154.10 is: 300,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,635.50 : 939,906.76 = 200,154.10 : x
  2. Step 2: Convert to fraction form
    626,635.50/939,906.76 = 200,154.10/x
  3. Step 3: Cross multiply
    626,635.50x = 939,906.76 × 200,154.10
  4. Step 4: Simplify right side
    626,635.50x = 188,126,191,631.72
  5. Step 5: Solve for x
    x = 188,126,191,631.72/626,635.50
  6. Step 6: Final answer
    x = 300,216.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.