Home / 685,433.14-945,910.29-383,626.42

Finding the Fourth Proportional to 685,433.14, 945,910.29 and 383,626.42

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Solution

The fourth proportional to 685,433.14, 945,910.29 and 383,626.42 is: 529,411.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,433.14 : 945,910.29 = 383,626.42 : x
  2. Step 2: Convert to fraction form
    685,433.14/945,910.29 = 383,626.42/x
  3. Step 3: Cross multiply
    685,433.14x = 945,910.29 × 383,626.42
  4. Step 4: Simplify right side
    685,433.14x = 362,876,178,193.86
  5. Step 5: Solve for x
    x = 362,876,178,193.86/685,433.14
  6. Step 6: Final answer
    x = 529,411.49

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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.