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Finding the Fourth Proportional to 492,048.87, 679,024.31 and 277,258.11

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Solution

The fourth proportional to 492,048.87, 679,024.31 and 277,258.11 is: 382,614.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,048.87 : 679,024.31 = 277,258.11 : x
  2. Step 2: Convert to fraction form
    492,048.87/679,024.31 = 277,258.11/x
  3. Step 3: Cross multiply
    492,048.87x = 679,024.31 × 277,258.11
  4. Step 4: Simplify right side
    492,048.87x = 188,264,993,439.53
  5. Step 5: Solve for x
    x = 188,264,993,439.53/492,048.87
  6. Step 6: Final answer
    x = 382,614.42

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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.