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Finding the Fourth Proportional to 671,516.94, 926,410.59 and 444,768.78

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Solution

The fourth proportional to 671,516.94, 926,410.59 and 444,768.78 is: 613,593.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,516.94 : 926,410.59 = 444,768.78 : x
  2. Step 2: Convert to fraction form
    671,516.94/926,410.59 = 444,768.78/x
  3. Step 3: Cross multiply
    671,516.94x = 926,410.59 × 444,768.78
  4. Step 4: Simplify right side
    671,516.94x = 412,038,507,893.38
  5. Step 5: Solve for x
    x = 412,038,507,893.38/671,516.94
  6. Step 6: Final answer
    x = 613,593.62

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.