Home / 405,973.10-608,959.65-125,518.70

Finding the Fourth Proportional to 405,973.10, 608,959.65 and 125,518.70

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Solution

The fourth proportional to 405,973.10, 608,959.65 and 125,518.70 is: 188,278.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,973.10 : 608,959.65 = 125,518.70 : x
  2. Step 2: Convert to fraction form
    405,973.10/608,959.65 = 125,518.70/x
  3. Step 3: Cross multiply
    405,973.10x = 608,959.65 × 125,518.70
  4. Step 4: Simplify right side
    405,973.10x = 76,435,823,620.46
  5. Step 5: Solve for x
    x = 76,435,823,620.46/405,973.10
  6. Step 6: Final answer
    x = 188,278.05

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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.