Home / 656,728.56-983,667.24-403,239.60

Finding the Fourth Proportional to 656,728.56, 983,667.24 and 403,239.60

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Solution

The fourth proportional to 656,728.56, 983,667.24 and 403,239.60 is: 603,984.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,728.56 : 983,667.24 = 403,239.60 : x
  2. Step 2: Convert to fraction form
    656,728.56/983,667.24 = 403,239.60/x
  3. Step 3: Cross multiply
    656,728.56x = 983,667.24 × 403,239.60
  4. Step 4: Simplify right side
    656,728.56x = 396,653,584,390.70
  5. Step 5: Solve for x
    x = 396,653,584,390.70/656,728.56
  6. Step 6: Final answer
    x = 603,984.06

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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.