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Finding the Fourth Proportional to 313,946.32, 470,919.46 and 92,330.32

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Solution

The fourth proportional to 313,946.32, 470,919.46 and 92,330.32 is: 138,495.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,946.32 : 470,919.46 = 92,330.32 : x
  2. Step 2: Convert to fraction form
    313,946.32/470,919.46 = 92,330.32/x
  3. Step 3: Cross multiply
    313,946.32x = 470,919.46 × 92,330.32
  4. Step 4: Simplify right side
    313,946.32x = 43,480,144,436.03
  5. Step 5: Solve for x
    x = 43,480,144,436.03/313,946.32
  6. Step 6: Final answer
    x = 138,495.47

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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.