Home / 492,560.78-679,734.68-277,700.27

Finding the Fourth Proportional to 492,560.78, 679,734.68 and 277,700.27

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Solution

The fourth proportional to 492,560.78, 679,734.68 and 277,700.27 is: 383,226.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,560.78 : 679,734.68 = 277,700.27 : x
  2. Step 2: Convert to fraction form
    492,560.78/679,734.68 = 277,700.27/x
  3. Step 3: Cross multiply
    492,560.78x = 679,734.68 × 277,700.27
  4. Step 4: Simplify right side
    492,560.78x = 188,762,499,377.19
  5. Step 5: Solve for x
    x = 188,762,499,377.19/492,560.78
  6. Step 6: Final answer
    x = 383,226.82

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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.