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Finding the Fourth Proportional to 393,362.19, 590,209.23 and 251,367.57

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Solution

The fourth proportional to 393,362.19, 590,209.23 and 251,367.57 is: 377,157.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,362.19 : 590,209.23 = 251,367.57 : x
  2. Step 2: Convert to fraction form
    393,362.19/590,209.23 = 251,367.57/x
  3. Step 3: Cross multiply
    393,362.19x = 590,209.23 × 251,367.57
  4. Step 4: Simplify right side
    393,362.19x = 148,359,459,936.67
  5. Step 5: Solve for x
    x = 148,359,459,936.67/393,362.19
  6. Step 6: Final answer
    x = 377,157.40

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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.