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Finding the Fourth Proportional to 629,362.76, 944,339.42 and 313,844.28

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Solution

The fourth proportional to 629,362.76, 944,339.42 and 313,844.28 is: 470,913.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,362.76 : 944,339.42 = 313,844.28 : x
  2. Step 2: Convert to fraction form
    629,362.76/944,339.42 = 313,844.28/x
  3. Step 3: Cross multiply
    629,362.76x = 944,339.42 × 313,844.28
  4. Step 4: Simplify right side
    629,362.76x = 296,375,525,345.52
  5. Step 5: Solve for x
    x = 296,375,525,345.52/629,362.76
  6. Step 6: Final answer
    x = 470,913.67

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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.