Home / 395,193.60-592,829.52-128,943.36

Finding the Fourth Proportional to 395,193.60, 592,829.52 and 128,943.36

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Solution

The fourth proportional to 395,193.60, 592,829.52 and 128,943.36 is: 193,427.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,193.60 : 592,829.52 = 128,943.36 : x
  2. Step 2: Convert to fraction form
    395,193.60/592,829.52 = 128,943.36/x
  3. Step 3: Cross multiply
    395,193.60x = 592,829.52 × 128,943.36
  4. Step 4: Simplify right side
    395,193.60x = 76,441,430,215.99
  5. Step 5: Solve for x
    x = 76,441,430,215.99/395,193.60
  6. Step 6: Final answer
    x = 193,427.80

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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.