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Finding the Fourth Proportional to 591,756.72, 816,623.16 and 323,484.72

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Solution

The fourth proportional to 591,756.72, 816,623.16 and 323,484.72 is: 446,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,756.72 : 816,623.16 = 323,484.72 : x
  2. Step 2: Convert to fraction form
    591,756.72/816,623.16 = 323,484.72/x
  3. Step 3: Cross multiply
    591,756.72x = 816,623.16 × 323,484.72
  4. Step 4: Simplify right side
    591,756.72x = 264,165,114,258.12
  5. Step 5: Solve for x
    x = 264,165,114,258.12/591,756.72
  6. Step 6: Final answer
    x = 446,408.30

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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.