Home / 331,623.81-457,653.15-188,408.16

Finding the Fourth Proportional to 331,623.81, 457,653.15 and 188,408.16

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Solution

The fourth proportional to 331,623.81, 457,653.15 and 188,408.16 is: 260,010.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,623.81 : 457,653.15 = 188,408.16 : x
  2. Step 2: Convert to fraction form
    331,623.81/457,653.15 = 188,408.16/x
  3. Step 3: Cross multiply
    331,623.81x = 457,653.15 × 188,408.16
  4. Step 4: Simplify right side
    331,623.81x = 86,225,587,909.70
  5. Step 5: Solve for x
    x = 86,225,587,909.70/331,623.81
  6. Step 6: Final answer
    x = 260,010.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.