Home / 419,828.67-578,905.72-283,626.14

Finding the Fourth Proportional to 419,828.67, 578,905.72 and 283,626.14

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Solution

The fourth proportional to 419,828.67, 578,905.72 and 283,626.14 is: 391,094.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,828.67 : 578,905.72 = 283,626.14 : x
  2. Step 2: Convert to fraction form
    419,828.67/578,905.72 = 283,626.14/x
  3. Step 3: Cross multiply
    419,828.67x = 578,905.72 × 283,626.14
  4. Step 4: Simplify right side
    419,828.67x = 164,192,791,183.93
  5. Step 5: Solve for x
    x = 164,192,791,183.93/419,828.67
  6. Step 6: Final answer
    x = 391,094.76

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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.