Home / 313,780.32-432,960.48-186,487.20

Finding the Fourth Proportional to 313,780.32, 432,960.48 and 186,487.20

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Solution

The fourth proportional to 313,780.32, 432,960.48 and 186,487.20 is: 257,318.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,780.32 : 432,960.48 = 186,487.20 : x
  2. Step 2: Convert to fraction form
    313,780.32/432,960.48 = 186,487.20/x
  3. Step 3: Cross multiply
    313,780.32x = 432,960.48 × 186,487.20
  4. Step 4: Simplify right side
    313,780.32x = 80,741,587,625.86
  5. Step 5: Solve for x
    x = 80,741,587,625.86/313,780.32
  6. Step 6: Final answer
    x = 257,318.84

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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.