Home / 436,112.20-654,038.70-169,719.40

Finding the Fourth Proportional to 436,112.20, 654,038.70 and 169,719.40

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Solution

The fourth proportional to 436,112.20, 654,038.70 and 169,719.40 is: 254,528.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,112.20 : 654,038.70 = 169,719.40 : x
  2. Step 2: Convert to fraction form
    436,112.20/654,038.70 = 169,719.40/x
  3. Step 3: Cross multiply
    436,112.20x = 654,038.70 × 169,719.40
  4. Step 4: Simplify right side
    436,112.20x = 111,003,055,740.78
  5. Step 5: Solve for x
    x = 111,003,055,740.78/436,112.20
  6. Step 6: Final answer
    x = 254,528.66

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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.