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Finding the Fourth Proportional to 402,066.40, 603,099.60 and 192,114.40

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Solution

The fourth proportional to 402,066.40, 603,099.60 and 192,114.40 is: 288,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,066.40 : 603,099.60 = 192,114.40 : x
  2. Step 2: Convert to fraction form
    402,066.40/603,099.60 = 192,114.40/x
  3. Step 3: Cross multiply
    402,066.40x = 603,099.60 × 192,114.40
  4. Step 4: Simplify right side
    402,066.40x = 115,864,117,794.24
  5. Step 5: Solve for x
    x = 115,864,117,794.24/402,066.40
  6. Step 6: Final answer
    x = 288,171.60

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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.