Home / 665,204.40-996,712.20-384,231.60

Finding the Fourth Proportional to 665,204.40, 996,712.20 and 384,231.60

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Solution

The fourth proportional to 665,204.40, 996,712.20 and 384,231.60 is: 575,715.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,204.40 : 996,712.20 = 384,231.60 : x
  2. Step 2: Convert to fraction form
    665,204.40/996,712.20 = 384,231.60/x
  3. Step 3: Cross multiply
    665,204.40x = 996,712.20 × 384,231.60
  4. Step 4: Simplify right side
    665,204.40x = 382,968,323,345.52
  5. Step 5: Solve for x
    x = 382,968,323,345.52/665,204.40
  6. Step 6: Final answer
    x = 575,715.26

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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.