Home / 570,028.20-854,507.70-215,280.60

Finding the Fourth Proportional to 570,028.20, 854,507.70 and 215,280.60

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Solution

The fourth proportional to 570,028.20, 854,507.70 and 215,280.60 is: 322,719.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,028.20 : 854,507.70 = 215,280.60 : x
  2. Step 2: Convert to fraction form
    570,028.20/854,507.70 = 215,280.60/x
  3. Step 3: Cross multiply
    570,028.20x = 854,507.70 × 215,280.60
  4. Step 4: Simplify right side
    570,028.20x = 183,958,930,360.62
  5. Step 5: Solve for x
    x = 183,958,930,360.62/570,028.20
  6. Step 6: Final answer
    x = 322,719.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.