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Finding the Fourth Proportional to 673,436.86, 929,348.28 and 367,515.64

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Solution

The fourth proportional to 673,436.86, 929,348.28 and 367,515.64 is: 507,174.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,436.86 : 929,348.28 = 367,515.64 : x
  2. Step 2: Convert to fraction form
    673,436.86/929,348.28 = 367,515.64/x
  3. Step 3: Cross multiply
    673,436.86x = 929,348.28 × 367,515.64
  4. Step 4: Simplify right side
    673,436.86x = 341,550,027,907.10
  5. Step 5: Solve for x
    x = 341,550,027,907.10/673,436.86
  6. Step 6: Final answer
    x = 507,174.54

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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.