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Finding the Fourth Proportional to 463,431.80, 695,147.70 and 373,230.20

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Solution

The fourth proportional to 463,431.80, 695,147.70 and 373,230.20 is: 559,845.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,431.80 : 695,147.70 = 373,230.20 : x
  2. Step 2: Convert to fraction form
    463,431.80/695,147.70 = 373,230.20/x
  3. Step 3: Cross multiply
    463,431.80x = 695,147.70 × 373,230.20
  4. Step 4: Simplify right side
    463,431.80x = 259,450,115,100.54
  5. Step 5: Solve for x
    x = 259,450,115,100.54/463,431.80
  6. Step 6: Final answer
    x = 559,845.30

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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.