Home / 405,966.30-608,949.45-125,511.90

Finding the Fourth Proportional to 405,966.30, 608,949.45 and 125,511.90

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Solution

The fourth proportional to 405,966.30, 608,949.45 and 125,511.90 is: 188,267.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,966.30 : 608,949.45 = 125,511.90 : x
  2. Step 2: Convert to fraction form
    405,966.30/608,949.45 = 125,511.90/x
  3. Step 3: Cross multiply
    405,966.30x = 608,949.45 × 125,511.90
  4. Step 4: Simplify right side
    405,966.30x = 76,430,402,473.46
  5. Step 5: Solve for x
    x = 76,430,402,473.46/405,966.30
  6. Step 6: Final answer
    x = 188,267.85

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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.