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Finding the Fourth Proportional to 683,974.72, 943,888.08 and 373,883.64

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Solution

The fourth proportional to 683,974.72, 943,888.08 and 373,883.64 is: 515,961.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,974.72 : 943,888.08 = 373,883.64 : x
  2. Step 2: Convert to fraction form
    683,974.72/943,888.08 = 373,883.64/x
  3. Step 3: Cross multiply
    683,974.72x = 943,888.08 × 373,883.64
  4. Step 4: Simplify right side
    683,974.72x = 352,904,311,103.01
  5. Step 5: Solve for x
    x = 352,904,311,103.01/683,974.72
  6. Step 6: Final answer
    x = 515,961.04

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.