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Finding the Fourth Proportional to 673,593.66, 929,236.56 and 455,878.32

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Solution

The fourth proportional to 673,593.66, 929,236.56 and 455,878.32 is: 628,893.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,593.66 : 929,236.56 = 455,878.32 : x
  2. Step 2: Convert to fraction form
    673,593.66/929,236.56 = 455,878.32/x
  3. Step 3: Cross multiply
    673,593.66x = 929,236.56 × 455,878.32
  4. Step 4: Simplify right side
    673,593.66x = 423,618,801,855.38
  5. Step 5: Solve for x
    x = 423,618,801,855.38/673,593.66
  6. Step 6: Final answer
    x = 628,893.69

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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.