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Finding the Fourth Proportional to 606,401.70, 909,711.90 and 251,451.60

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Solution

The fourth proportional to 606,401.70, 909,711.90 and 251,451.60 is: 377,222.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,401.70 : 909,711.90 = 251,451.60 : x
  2. Step 2: Convert to fraction form
    606,401.70/909,711.90 = 251,451.60/x
  3. Step 3: Cross multiply
    606,401.70x = 909,711.90 × 251,451.60
  4. Step 4: Simplify right side
    606,401.70x = 228,748,512,794.04
  5. Step 5: Solve for x
    x = 228,748,512,794.04/606,401.70
  6. Step 6: Final answer
    x = 377,222.74

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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.