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Finding the Fourth Proportional to 647,295.83, 970,942.37 and 173,981.20

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Solution

The fourth proportional to 647,295.83, 970,942.37 and 173,981.20 is: 260,971.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,295.83 : 970,942.37 = 173,981.20 : x
  2. Step 2: Convert to fraction form
    647,295.83/970,942.37 = 173,981.20/x
  3. Step 3: Cross multiply
    647,295.83x = 970,942.37 × 173,981.20
  4. Step 4: Simplify right side
    647,295.83x = 168,925,715,366.18
  5. Step 5: Solve for x
    x = 168,925,715,366.18/647,295.83
  6. Step 6: Final answer
    x = 260,971.43

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Double scale
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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.