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Finding the Fourth Proportional to 647,764.70, 970,334.85 and 366,953.90

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Solution

The fourth proportional to 647,764.70, 970,334.85 and 366,953.90 is: 549,687.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,764.70 : 970,334.85 = 366,953.90 : x
  2. Step 2: Convert to fraction form
    647,764.70/970,334.85 = 366,953.90/x
  3. Step 3: Cross multiply
    647,764.70x = 970,334.85 × 366,953.90
  4. Step 4: Simplify right side
    647,764.70x = 356,068,157,513.42
  5. Step 5: Solve for x
    x = 356,068,157,513.42/647,764.70
  6. Step 6: Final answer
    x = 549,687.50

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Double scale
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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.