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Finding the Fourth Proportional to 492,220.10, 679,277.85 and 277,348.34

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Solution

The fourth proportional to 492,220.10, 679,277.85 and 277,348.34 is: 382,748.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,220.10 : 679,277.85 = 277,348.34 : x
  2. Step 2: Convert to fraction form
    492,220.10/679,277.85 = 277,348.34/x
  3. Step 3: Cross multiply
    492,220.10x = 679,277.85 × 277,348.34
  4. Step 4: Simplify right side
    492,220.10x = 188,396,584,096.27
  5. Step 5: Solve for x
    x = 188,396,584,096.27/492,220.10
  6. Step 6: Final answer
    x = 382,748.66

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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.