Home / 291,719.40-437,579.10-171,653.10

Finding the Fourth Proportional to 291,719.40, 437,579.10 and 171,653.10

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Solution

The fourth proportional to 291,719.40, 437,579.10 and 171,653.10 is: 257,479.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,719.40 : 437,579.10 = 171,653.10 : x
  2. Step 2: Convert to fraction form
    291,719.40/437,579.10 = 171,653.10/x
  3. Step 3: Cross multiply
    291,719.40x = 437,579.10 × 171,653.10
  4. Step 4: Simplify right side
    291,719.40x = 75,111,809,010.21
  5. Step 5: Solve for x
    x = 75,111,809,010.21/291,719.40
  6. Step 6: Final answer
    x = 257,479.65

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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.