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Finding the Fourth Proportional to 647,002.60, 970,503.90 and 367,066.60

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Solution

The fourth proportional to 647,002.60, 970,503.90 and 367,066.60 is: 550,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,002.60 : 970,503.90 = 367,066.60 : x
  2. Step 2: Convert to fraction form
    647,002.60/970,503.90 = 367,066.60/x
  3. Step 3: Cross multiply
    647,002.60x = 970,503.90 × 367,066.60
  4. Step 4: Simplify right side
    647,002.60x = 356,239,566,859.74
  5. Step 5: Solve for x
    x = 356,239,566,859.74/647,002.60
  6. Step 6: Final answer
    x = 550,599.90

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Similar ratio
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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.