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Finding the Fourth Proportional to 492,401.84, 679,506.36 and 277,542.32

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Solution

The fourth proportional to 492,401.84, 679,506.36 and 277,542.32 is: 383,003.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,401.84 : 679,506.36 = 277,542.32 : x
  2. Step 2: Convert to fraction form
    492,401.84/679,506.36 = 277,542.32/x
  3. Step 3: Cross multiply
    492,401.84x = 679,506.36 × 277,542.32
  4. Step 4: Simplify right side
    492,401.84x = 188,591,771,609.16
  5. Step 5: Solve for x
    x = 188,591,771,609.16/492,401.84
  6. Step 6: Final answer
    x = 383,003.79

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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.