Home / 456,190.20-683,507.70-389,316.60

Finding the Fourth Proportional to 456,190.20, 683,507.70 and 389,316.60

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Solution

The fourth proportional to 456,190.20, 683,507.70 and 389,316.60 is: 583,311.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,190.20 : 683,507.70 = 389,316.60 : x
  2. Step 2: Convert to fraction form
    456,190.20/683,507.70 = 389,316.60/x
  3. Step 3: Cross multiply
    456,190.20x = 683,507.70 × 389,316.60
  4. Step 4: Simplify right side
    456,190.20x = 266,100,893,837.82
  5. Step 5: Solve for x
    x = 266,100,893,837.82/456,190.20
  6. Step 6: Final answer
    x = 583,311.29

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1.5x scale

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.