Home / 579,964.40-868,564.20-356,015.60

Finding the Fourth Proportional to 579,964.40, 868,564.20 and 356,015.60

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Solution

The fourth proportional to 579,964.40, 868,564.20 and 356,015.60 is: 533,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,964.40 : 868,564.20 = 356,015.60 : x
  2. Step 2: Convert to fraction form
    579,964.40/868,564.20 = 356,015.60/x
  3. Step 3: Cross multiply
    579,964.40x = 868,564.20 × 356,015.60
  4. Step 4: Simplify right side
    579,964.40x = 309,222,404,801.52
  5. Step 5: Solve for x
    x = 309,222,404,801.52/579,964.40
  6. Step 6: Final answer
    x = 533,174.80

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Double scale
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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.