Home / 499,160.89-688,983.13-295,282.72

Finding the Fourth Proportional to 499,160.89, 688,983.13 and 295,282.72

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Solution

The fourth proportional to 499,160.89, 688,983.13 and 295,282.72 is: 407,573.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,160.89 : 688,983.13 = 295,282.72 : x
  2. Step 2: Convert to fraction form
    499,160.89/688,983.13 = 295,282.72/x
  3. Step 3: Cross multiply
    499,160.89x = 688,983.13 × 295,282.72
  4. Step 4: Simplify right side
    499,160.89x = 203,444,813,890.85
  5. Step 5: Solve for x
    x = 203,444,813,890.85/499,160.89
  6. Step 6: Final answer
    x = 407,573.62

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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.