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Finding the Fourth Proportional to 673,299.75, 929,173.11 and 371,513.19

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Solution

The fourth proportional to 673,299.75, 929,173.11 and 371,513.19 is: 512,698.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,299.75 : 929,173.11 = 371,513.19 : x
  2. Step 2: Convert to fraction form
    673,299.75/929,173.11 = 371,513.19/x
  3. Step 3: Cross multiply
    673,299.75x = 929,173.11 × 371,513.19
  4. Step 4: Simplify right side
    673,299.75x = 345,200,066,158.32
  5. Step 5: Solve for x
    x = 345,200,066,158.32/673,299.75
  6. Step 6: Final answer
    x = 512,698.94

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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.